Home / 52,229.60-78,344.40-25,985.60

Finding the Fourth Proportional to 52,229.60, 78,344.40 and 25,985.60

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Solution

The fourth proportional to 52,229.60, 78,344.40 and 25,985.60 is: 38,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,229.60 : 78,344.40 = 25,985.60 : x
  2. Step 2: Convert to fraction form
    52,229.60/78,344.40 = 25,985.60/x
  3. Step 3: Cross multiply
    52,229.60x = 78,344.40 × 25,985.60
  4. Step 4: Simplify right side
    52,229.60x = 2,035,826,240.64
  5. Step 5: Solve for x
    x = 2,035,826,240.64/52,229.60
  6. Step 6: Final answer
    x = 38,978.40

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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.