Home / 83,205.28-124,807.92-38,818.72

Finding the Fourth Proportional to 83,205.28, 124,807.92 and 38,818.72

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Solution

The fourth proportional to 83,205.28, 124,807.92 and 38,818.72 is: 58,228.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,205.28 : 124,807.92 = 38,818.72 : x
  2. Step 2: Convert to fraction form
    83,205.28/124,807.92 = 38,818.72/x
  3. Step 3: Cross multiply
    83,205.28x = 124,807.92 × 38,818.72
  4. Step 4: Simplify right side
    83,205.28x = 4,844,883,700.26
  5. Step 5: Solve for x
    x = 4,844,883,700.26/83,205.28
  6. Step 6: Final answer
    x = 58,228.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.