Home / 83,686.08-115,453.39-53,463.56

Finding the Fourth Proportional to 83,686.08, 115,453.39 and 53,463.56

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Solution

The fourth proportional to 83,686.08, 115,453.39 and 53,463.56 is: 73,758.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,686.08 : 115,453.39 = 53,463.56 : x
  2. Step 2: Convert to fraction form
    83,686.08/115,453.39 = 53,463.56/x
  3. Step 3: Cross multiply
    83,686.08x = 115,453.39 × 53,463.56
  4. Step 4: Simplify right side
    83,686.08x = 6,172,549,243.47
  5. Step 5: Solve for x
    x = 6,172,549,243.47/83,686.08
  6. Step 6: Final answer
    x = 73,758.37

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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.