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Finding the Fourth Proportional to 63,121.95, 87,071.56 and 40,452.89

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Solution

The fourth proportional to 63,121.95, 87,071.56 and 40,452.89 is: 55,801.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,121.95 : 87,071.56 = 40,452.89 : x
  2. Step 2: Convert to fraction form
    63,121.95/87,071.56 = 40,452.89/x
  3. Step 3: Cross multiply
    63,121.95x = 87,071.56 × 40,452.89
  4. Step 4: Simplify right side
    63,121.95x = 3,522,295,702.32
  5. Step 5: Solve for x
    x = 3,522,295,702.32/63,121.95
  6. Step 6: Final answer
    x = 55,801.44

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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.