Home / 74,417.88-102,691.34-42,143.24

Finding the Fourth Proportional to 74,417.88, 102,691.34 and 42,143.24

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Solution

The fourth proportional to 74,417.88, 102,691.34 and 42,143.24 is: 58,154.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,417.88 : 102,691.34 = 42,143.24 : x
  2. Step 2: Convert to fraction form
    74,417.88/102,691.34 = 42,143.24/x
  3. Step 3: Cross multiply
    74,417.88x = 102,691.34 × 42,143.24
  4. Step 4: Simplify right side
    74,417.88x = 4,327,745,787.54
  5. Step 5: Solve for x
    x = 4,327,745,787.54/74,417.88
  6. Step 6: Final answer
    x = 58,154.65

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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.