Home / 81,337.47-112,239.58-49,502.85

Finding the Fourth Proportional to 81,337.47, 112,239.58 and 49,502.85

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Solution

The fourth proportional to 81,337.47, 112,239.58 and 49,502.85 is: 68,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,337.47 : 112,239.58 = 49,502.85 : x
  2. Step 2: Convert to fraction form
    81,337.47/112,239.58 = 49,502.85/x
  3. Step 3: Cross multiply
    81,337.47x = 112,239.58 × 49,502.85
  4. Step 4: Simplify right side
    81,337.47x = 5,556,179,092.80
  5. Step 5: Solve for x
    x = 5,556,179,092.80/81,337.47
  6. Step 6: Final answer
    x = 68,310.20

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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.