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Finding the Fourth Proportional to 88,905.60, 133,455.60 and 55,663.20

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Solution

The fourth proportional to 88,905.60, 133,455.60 and 55,663.20 is: 83,555.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,905.60 : 133,455.60 = 55,663.20 : x
  2. Step 2: Convert to fraction form
    88,905.60/133,455.60 = 55,663.20/x
  3. Step 3: Cross multiply
    88,905.60x = 133,455.60 × 55,663.20
  4. Step 4: Simplify right side
    88,905.60x = 7,428,565,753.92
  5. Step 5: Solve for x
    x = 7,428,565,753.92/88,905.60
  6. Step 6: Final answer
    x = 83,555.66

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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.