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Finding the Fourth Proportional to 88,910.52, 122,602.86 and 55,318.20

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Solution

The fourth proportional to 88,910.52, 122,602.86 and 55,318.20 is: 76,280.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,910.52 : 122,602.86 = 55,318.20 : x
  2. Step 2: Convert to fraction form
    88,910.52/122,602.86 = 55,318.20/x
  3. Step 3: Cross multiply
    88,910.52x = 122,602.86 × 55,318.20
  4. Step 4: Simplify right side
    88,910.52x = 6,782,169,530.05
  5. Step 5: Solve for x
    x = 6,782,169,530.05/88,910.52
  6. Step 6: Final answer
    x = 76,280.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.