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Finding the Fourth Proportional to 72,348.57, 108,549.45 and 30,232.89

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Solution

The fourth proportional to 72,348.57, 108,549.45 and 30,232.89 is: 45,360.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,348.57 : 108,549.45 = 30,232.89 : x
  2. Step 2: Convert to fraction form
    72,348.57/108,549.45 = 30,232.89/x
  3. Step 3: Cross multiply
    72,348.57x = 108,549.45 × 30,232.89
  4. Step 4: Simplify right side
    72,348.57x = 3,281,763,581.41
  5. Step 5: Solve for x
    x = 3,281,763,581.41/72,348.57
  6. Step 6: Final answer
    x = 45,360.45

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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.