Home / 74,221.59-102,432.28-40,694.07

Finding the Fourth Proportional to 74,221.59, 102,432.28 and 40,694.07

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Solution

The fourth proportional to 74,221.59, 102,432.28 and 40,694.07 is: 56,161.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,221.59 : 102,432.28 = 40,694.07 : x
  2. Step 2: Convert to fraction form
    74,221.59/102,432.28 = 40,694.07/x
  3. Step 3: Cross multiply
    74,221.59x = 102,432.28 × 40,694.07
  4. Step 4: Simplify right side
    74,221.59x = 4,168,386,731.27
  5. Step 5: Solve for x
    x = 4,168,386,731.27/74,221.59
  6. Step 6: Final answer
    x = 56,161.37

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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.