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Finding the Fourth Proportional to 72,002.60, 108,003.90 and 25,250.60

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Solution

The fourth proportional to 72,002.60, 108,003.90 and 25,250.60 is: 37,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,002.60 : 108,003.90 = 25,250.60 : x
  2. Step 2: Convert to fraction form
    72,002.60/108,003.90 = 25,250.60/x
  3. Step 3: Cross multiply
    72,002.60x = 108,003.90 × 25,250.60
  4. Step 4: Simplify right side
    72,002.60x = 2,727,163,277.34
  5. Step 5: Solve for x
    x = 2,727,163,277.34/72,002.60
  6. Step 6: Final answer
    x = 37,875.90

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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.