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Finding the Fourth Proportional to 63,669.90, 95,480.55 and 19,281.90

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Solution

The fourth proportional to 63,669.90, 95,480.55 and 19,281.90 is: 28,915.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,669.90 : 95,480.55 = 19,281.90 : x
  2. Step 2: Convert to fraction form
    63,669.90/95,480.55 = 19,281.90/x
  3. Step 3: Cross multiply
    63,669.90x = 95,480.55 × 19,281.90
  4. Step 4: Simplify right side
    63,669.90x = 1,841,046,417.05
  5. Step 5: Solve for x
    x = 1,841,046,417.05/63,669.90
  6. Step 6: Final answer
    x = 28,915.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.