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Finding the Fourth Proportional to 63,307.98, 87,391.91 and 39,446.45

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Solution

The fourth proportional to 63,307.98, 87,391.91 and 39,446.45 is: 54,452.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,307.98 : 87,391.91 = 39,446.45 : x
  2. Step 2: Convert to fraction form
    63,307.98/87,391.91 = 39,446.45/x
  3. Step 3: Cross multiply
    63,307.98x = 87,391.91 × 39,446.45
  4. Step 4: Simplify right side
    63,307.98x = 3,447,300,597.60
  5. Step 5: Solve for x
    x = 3,447,300,597.60/63,307.98
  6. Step 6: Final answer
    x = 54,452.86

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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.