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Finding the Fourth Proportional to 88,288.40, 132,259.80 and 53,123.60

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Solution

The fourth proportional to 88,288.40, 132,259.80 and 53,123.60 is: 79,581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,288.40 : 132,259.80 = 53,123.60 : x
  2. Step 2: Convert to fraction form
    88,288.40/132,259.80 = 53,123.60/x
  3. Step 3: Cross multiply
    88,288.40x = 132,259.80 × 53,123.60
  4. Step 4: Simplify right side
    88,288.40x = 7,026,116,711.28
  5. Step 5: Solve for x
    x = 7,026,116,711.28/88,288.40
  6. Step 6: Final answer
    x = 79,581.43

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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.