Home / 76,246.10-105,216.54-42,255.08

Finding the Fourth Proportional to 76,246.10, 105,216.54 and 42,255.08

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Solution

The fourth proportional to 76,246.10, 105,216.54 and 42,255.08 is: 58,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,246.10 : 105,216.54 = 42,255.08 : x
  2. Step 2: Convert to fraction form
    76,246.10/105,216.54 = 42,255.08/x
  3. Step 3: Cross multiply
    76,246.10x = 105,216.54 × 42,255.08
  4. Step 4: Simplify right side
    76,246.10x = 4,445,933,315.02
  5. Step 5: Solve for x
    x = 4,445,933,315.02/76,246.10
  6. Step 6: Final answer
    x = 58,310.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.