Home / 74,221.92-102,424.24-42,385.76

Finding the Fourth Proportional to 74,221.92, 102,424.24 and 42,385.76

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Solution

The fourth proportional to 74,221.92, 102,424.24 and 42,385.76 is: 58,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,221.92 : 102,424.24 = 42,385.76 : x
  2. Step 2: Convert to fraction form
    74,221.92/102,424.24 = 42,385.76/x
  3. Step 3: Cross multiply
    74,221.92x = 102,424.24 × 42,385.76
  4. Step 4: Simplify right side
    74,221.92x = 4,341,329,254.82
  5. Step 5: Solve for x
    x = 4,341,329,254.82/74,221.92
  6. Step 6: Final answer
    x = 58,491.20

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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.