Home / 83,686.28-115,453.64-53,463.74

Finding the Fourth Proportional to 83,686.28, 115,453.64 and 53,463.74

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Solution

The fourth proportional to 83,686.28, 115,453.64 and 53,463.74 is: 73,758.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,686.28 : 115,453.64 = 53,463.74 : x
  2. Step 2: Convert to fraction form
    83,686.28/115,453.64 = 53,463.74/x
  3. Step 3: Cross multiply
    83,686.28x = 115,453.64 × 53,463.74
  4. Step 4: Simplify right side
    83,686.28x = 6,172,583,391.01
  5. Step 5: Solve for x
    x = 6,172,583,391.01/83,686.28
  6. Step 6: Final answer
    x = 73,758.61

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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.