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Finding the Fourth Proportional to 72,244.80, 108,367.20 and 25,502.40

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Solution

The fourth proportional to 72,244.80, 108,367.20 and 25,502.40 is: 38,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,244.80 : 108,367.20 = 25,502.40 : x
  2. Step 2: Convert to fraction form
    72,244.80/108,367.20 = 25,502.40/x
  3. Step 3: Cross multiply
    72,244.80x = 108,367.20 × 25,502.40
  4. Step 4: Simplify right side
    72,244.80x = 2,763,623,681.28
  5. Step 5: Solve for x
    x = 2,763,623,681.28/72,244.80
  6. Step 6: Final answer
    x = 38,253.60

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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.