Home / 42,276.92-63,416-20,092.56

Finding the Fourth Proportional to 42,276.92, 63,416 and 20,092.56

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Solution

The fourth proportional to 42,276.92, 63,416 and 20,092.56 is: 30,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,276.92 : 63,416 = 20,092.56 : x
  2. Step 2: Convert to fraction form
    42,276.92/63,416 = 20,092.56/x
  3. Step 3: Cross multiply
    42,276.92x = 63,416 × 20,092.56
  4. Step 4: Simplify right side
    42,276.92x = 1,274,189,784.96
  5. Step 5: Solve for x
    x = 1,274,189,784.96/42,276.92
  6. Step 6: Final answer
    x = 30,139.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.