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Finding the Fourth Proportional to 63,136.98, 87,128.73 and 34,844.40

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Solution

The fourth proportional to 63,136.98, 87,128.73 and 34,844.40 is: 48,085.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,136.98 : 87,128.73 = 34,844.40 : x
  2. Step 2: Convert to fraction form
    63,136.98/87,128.73 = 34,844.40/x
  3. Step 3: Cross multiply
    63,136.98x = 87,128.73 × 34,844.40
  4. Step 4: Simplify right side
    63,136.98x = 3,035,948,319.61
  5. Step 5: Solve for x
    x = 3,035,948,319.61/63,136.98
  6. Step 6: Final answer
    x = 48,085.11

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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.