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Finding the Fourth Proportional to 84,744.70, 127,068.88 and 65,503.66

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Solution

The fourth proportional to 84,744.70, 127,068.88 and 65,503.66 is: 98,218.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,744.70 : 127,068.88 = 65,503.66 : x
  2. Step 2: Convert to fraction form
    84,744.70/127,068.88 = 65,503.66/x
  3. Step 3: Cross multiply
    84,744.70x = 127,068.88 × 65,503.66
  4. Step 4: Simplify right side
    84,744.70x = 8,323,476,712.10
  5. Step 5: Solve for x
    x = 8,323,476,712.10/84,744.70
  6. Step 6: Final answer
    x = 98,218.26

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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.