Home / 69,087.02-103,630.52-19,167.12

Finding the Fourth Proportional to 69,087.02, 103,630.52 and 19,167.12

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Solution

The fourth proportional to 69,087.02, 103,630.52 and 19,167.12 is: 28,750.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,087.02 : 103,630.52 = 19,167.12 : x
  2. Step 2: Convert to fraction form
    69,087.02/103,630.52 = 19,167.12/x
  3. Step 3: Cross multiply
    69,087.02x = 103,630.52 × 19,167.12
  4. Step 4: Simplify right side
    69,087.02x = 1,986,298,612.50
  5. Step 5: Solve for x
    x = 1,986,298,612.50/69,087.02
  6. Step 6: Final answer
    x = 28,750.68

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.