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Finding the Fourth Proportional to 52,862.34, 72,951.04 and 28,987.60

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Solution

The fourth proportional to 52,862.34, 72,951.04 and 28,987.60 is: 40,003.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,862.34 : 72,951.04 = 28,987.60 : x
  2. Step 2: Convert to fraction form
    52,862.34/72,951.04 = 28,987.60/x
  3. Step 3: Cross multiply
    52,862.34x = 72,951.04 × 28,987.60
  4. Step 4: Simplify right side
    52,862.34x = 2,114,675,567.10
  5. Step 5: Solve for x
    x = 2,114,675,567.10/52,862.34
  6. Step 6: Final answer
    x = 40,003.44

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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.