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Finding the Fourth Proportional to 93,885.60, 140,879.60 and 38,487.20

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Solution

The fourth proportional to 93,885.60, 140,879.60 and 38,487.20 is: 57,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,885.60 : 140,879.60 = 38,487.20 : x
  2. Step 2: Convert to fraction form
    93,885.60/140,879.60 = 38,487.20/x
  3. Step 3: Cross multiply
    93,885.60x = 140,879.60 × 38,487.20
  4. Step 4: Simplify right side
    93,885.60x = 5,422,061,341.12
  5. Step 5: Solve for x
    x = 5,422,061,341.12/93,885.60
  6. Step 6: Final answer
    x = 57,751.79

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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.