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Finding the Fourth Proportional to 72,152.68, 108,229.14 and 30,032.20

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Solution

The fourth proportional to 72,152.68, 108,229.14 and 30,032.20 is: 45,048.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,152.68 : 108,229.14 = 30,032.20 : x
  2. Step 2: Convert to fraction form
    72,152.68/108,229.14 = 30,032.20/x
  3. Step 3: Cross multiply
    72,152.68x = 108,229.14 × 30,032.20
  4. Step 4: Simplify right side
    72,152.68x = 3,250,359,178.31
  5. Step 5: Solve for x
    x = 3,250,359,178.31/72,152.68
  6. Step 6: Final answer
    x = 45,048.35

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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.