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Finding the Fourth Proportional to 97,285.20, 145,819.80 and 38,101.20

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Solution

The fourth proportional to 97,285.20, 145,819.80 and 38,101.20 is: 57,109.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,285.20 : 145,819.80 = 38,101.20 : x
  2. Step 2: Convert to fraction form
    97,285.20/145,819.80 = 38,101.20/x
  3. Step 3: Cross multiply
    97,285.20x = 145,819.80 × 38,101.20
  4. Step 4: Simplify right side
    97,285.20x = 5,555,909,363.76
  5. Step 5: Solve for x
    x = 5,555,909,363.76/97,285.20
  6. Step 6: Final answer
    x = 57,109.50

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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.