Home / 62,731.77-86,610.38-38,883.75

Finding the Fourth Proportional to 62,731.77, 86,610.38 and 38,883.75

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Solution

The fourth proportional to 62,731.77, 86,610.38 and 38,883.75 is: 53,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,731.77 : 86,610.38 = 38,883.75 : x
  2. Step 2: Convert to fraction form
    62,731.77/86,610.38 = 38,883.75/x
  3. Step 3: Cross multiply
    62,731.77x = 86,610.38 × 38,883.75
  4. Step 4: Simplify right side
    62,731.77x = 3,367,736,168.91
  5. Step 5: Solve for x
    x = 3,367,736,168.91/62,731.77
  6. Step 6: Final answer
    x = 53,684.70

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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.