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Finding the Fourth Proportional to 72,029.40, 108,044.10 and 25,276.20

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Solution

The fourth proportional to 72,029.40, 108,044.10 and 25,276.20 is: 37,914.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,029.40 : 108,044.10 = 25,276.20 : x
  2. Step 2: Convert to fraction form
    72,029.40/108,044.10 = 25,276.20/x
  3. Step 3: Cross multiply
    72,029.40x = 108,044.10 × 25,276.20
  4. Step 4: Simplify right side
    72,029.40x = 2,730,944,280.42
  5. Step 5: Solve for x
    x = 2,730,944,280.42/72,029.40
  6. Step 6: Final answer
    x = 37,914.30

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Similar ratio
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1.5x scale

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.