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Finding the Fourth Proportional to 69,088.74, 103,633.10 and 19,168.84

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Solution

The fourth proportional to 69,088.74, 103,633.10 and 19,168.84 is: 28,753.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,088.74 : 103,633.10 = 19,168.84 : x
  2. Step 2: Convert to fraction form
    69,088.74/103,633.10 = 19,168.84/x
  3. Step 3: Cross multiply
    69,088.74x = 103,633.10 × 19,168.84
  4. Step 4: Simplify right side
    69,088.74x = 1,986,526,312.60
  5. Step 5: Solve for x
    x = 1,986,526,312.60/69,088.74
  6. Step 6: Final answer
    x = 28,753.26

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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.