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Finding the Fourth Proportional to 88,619.60, 133,026.60 and 55,377.20

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Solution

The fourth proportional to 88,619.60, 133,026.60 and 55,377.20 is: 83,126.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,619.60 : 133,026.60 = 55,377.20 : x
  2. Step 2: Convert to fraction form
    88,619.60/133,026.60 = 55,377.20/x
  3. Step 3: Cross multiply
    88,619.60x = 133,026.60 × 55,377.20
  4. Step 4: Simplify right side
    88,619.60x = 7,366,640,633.52
  5. Step 5: Solve for x
    x = 7,366,640,633.52/88,619.60
  6. Step 6: Final answer
    x = 83,126.54

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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.