Home / 74,331.79-102,581-42,500.68

Finding the Fourth Proportional to 74,331.79, 102,581 and 42,500.68

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Solution

The fourth proportional to 74,331.79, 102,581 and 42,500.68 is: 58,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,331.79 : 102,581 = 42,500.68 : x
  2. Step 2: Convert to fraction form
    74,331.79/102,581 = 42,500.68/x
  3. Step 3: Cross multiply
    74,331.79x = 102,581 × 42,500.68
  4. Step 4: Simplify right side
    74,331.79x = 4,359,762,255.08
  5. Step 5: Solve for x
    x = 4,359,762,255.08/74,331.79
  6. Step 6: Final answer
    x = 58,652.73

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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.