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Finding the Fourth Proportional to 72,250.20, 108,375.30 and 34,828.20

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Solution

The fourth proportional to 72,250.20, 108,375.30 and 34,828.20 is: 52,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,250.20 : 108,375.30 = 34,828.20 : x
  2. Step 2: Convert to fraction form
    72,250.20/108,375.30 = 34,828.20/x
  3. Step 3: Cross multiply
    72,250.20x = 108,375.30 × 34,828.20
  4. Step 4: Simplify right side
    72,250.20x = 3,774,516,623.46
  5. Step 5: Solve for x
    x = 3,774,516,623.46/72,250.20
  6. Step 6: Final answer
    x = 52,242.30

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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.