Home / 56,359.20-77,787.20-38,503.68

Finding the Fourth Proportional to 56,359.20, 77,787.20 and 38,503.68

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Solution

The fourth proportional to 56,359.20, 77,787.20 and 38,503.68 is: 53,142.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,359.20 : 77,787.20 = 38,503.68 : x
  2. Step 2: Convert to fraction form
    56,359.20/77,787.20 = 38,503.68/x
  3. Step 3: Cross multiply
    56,359.20x = 77,787.20 × 38,503.68
  4. Step 4: Simplify right side
    56,359.20x = 2,995,093,456.90
  5. Step 5: Solve for x
    x = 2,995,093,456.90/56,359.20
  6. Step 6: Final answer
    x = 53,142.94

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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.