Home / 83,637.28-115,569-62,213.44

Finding the Fourth Proportional to 83,637.28, 115,569 and 62,213.44

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Solution

The fourth proportional to 83,637.28, 115,569 and 62,213.44 is: 85,965.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,637.28 : 115,569 = 62,213.44 : x
  2. Step 2: Convert to fraction form
    83,637.28/115,569 = 62,213.44/x
  3. Step 3: Cross multiply
    83,637.28x = 115,569 × 62,213.44
  4. Step 4: Simplify right side
    83,637.28x = 7,189,945,047.36
  5. Step 5: Solve for x
    x = 7,189,945,047.36/83,637.28
  6. Step 6: Final answer
    x = 85,965.79

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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.