Home / 83,651.20-115,387.94-49,637.28

Finding the Fourth Proportional to 83,651.20, 115,387.94 and 49,637.28

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Solution

The fourth proportional to 83,651.20, 115,387.94 and 49,637.28 is: 68,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,651.20 : 115,387.94 = 49,637.28 : x
  2. Step 2: Convert to fraction form
    83,651.20/115,387.94 = 49,637.28/x
  3. Step 3: Cross multiply
    83,651.20x = 115,387.94 × 49,637.28
  4. Step 4: Simplify right side
    83,651.20x = 5,727,543,486.40
  5. Step 5: Solve for x
    x = 5,727,543,486.40/83,651.20
  6. Step 6: Final answer
    x = 68,469.35

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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.