Home / 74,884.13-103,340.28-40,892.69

Finding the Fourth Proportional to 74,884.13, 103,340.28 and 40,892.69

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Solution

The fourth proportional to 74,884.13, 103,340.28 and 40,892.69 is: 56,432.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,884.13 : 103,340.28 = 40,892.69 : x
  2. Step 2: Convert to fraction form
    74,884.13/103,340.28 = 40,892.69/x
  3. Step 3: Cross multiply
    74,884.13x = 103,340.28 × 40,892.69
  4. Step 4: Simplify right side
    74,884.13x = 4,225,861,517.85
  5. Step 5: Solve for x
    x = 4,225,861,517.85/74,884.13
  6. Step 6: Final answer
    x = 56,432.01

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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.