Home / 85,377.90-117,818.45-47,136.66

Finding the Fourth Proportional to 85,377.90, 117,818.45 and 47,136.66

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Solution

The fourth proportional to 85,377.90, 117,818.45 and 47,136.66 is: 65,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,377.90 : 117,818.45 = 47,136.66 : x
  2. Step 2: Convert to fraction form
    85,377.90/117,818.45 = 47,136.66/x
  3. Step 3: Cross multiply
    85,377.90x = 117,818.45 × 47,136.66
  4. Step 4: Simplify right side
    85,377.90x = 5,553,567,983.69
  5. Step 5: Solve for x
    x = 5,553,567,983.69/85,377.90
  6. Step 6: Final answer
    x = 65,046.90

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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.