Home / 83,830.32-125,576.64-38,788.20

Finding the Fourth Proportional to 83,830.32, 125,576.64 and 38,788.20

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Solution

The fourth proportional to 83,830.32, 125,576.64 and 38,788.20 is: 58,104.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,830.32 : 125,576.64 = 38,788.20 : x
  2. Step 2: Convert to fraction form
    83,830.32/125,576.64 = 38,788.20/x
  3. Step 3: Cross multiply
    83,830.32x = 125,576.64 × 38,788.20
  4. Step 4: Simplify right side
    83,830.32x = 4,870,891,827.65
  5. Step 5: Solve for x
    x = 4,870,891,827.65/83,830.32
  6. Step 6: Final answer
    x = 58,104.18

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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.