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Finding the Fourth Proportional to 83,136.91, 114,729.03 and 47,326.88

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Solution

The fourth proportional to 83,136.91, 114,729.03 and 47,326.88 is: 65,311.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,136.91 : 114,729.03 = 47,326.88 : x
  2. Step 2: Convert to fraction form
    83,136.91/114,729.03 = 47,326.88/x
  3. Step 3: Cross multiply
    83,136.91x = 114,729.03 × 47,326.88
  4. Step 4: Simplify right side
    83,136.91x = 5,429,767,035.33
  5. Step 5: Solve for x
    x = 5,429,767,035.33/83,136.91
  6. Step 6: Final answer
    x = 65,311.15

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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.