Home / 74,572.68-102,910.64-42,743.44

Finding the Fourth Proportional to 74,572.68, 102,910.64 and 42,743.44

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Solution

The fourth proportional to 74,572.68, 102,910.64 and 42,743.44 is: 58,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,572.68 : 102,910.64 = 42,743.44 : x
  2. Step 2: Convert to fraction form
    74,572.68/102,910.64 = 42,743.44/x
  3. Step 3: Cross multiply
    74,572.68x = 102,910.64 × 42,743.44
  4. Step 4: Simplify right side
    74,572.68x = 4,398,754,766.20
  5. Step 5: Solve for x
    x = 4,398,754,766.20/74,572.68
  6. Step 6: Final answer
    x = 58,986.14

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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.