Home / 66,134.19-99,207.59-21,761.31

Finding the Fourth Proportional to 66,134.19, 99,207.59 and 21,761.31

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Solution

The fourth proportional to 66,134.19, 99,207.59 and 21,761.31 is: 32,644.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,134.19 : 99,207.59 = 21,761.31 : x
  2. Step 2: Convert to fraction form
    66,134.19/99,207.59 = 21,761.31/x
  3. Step 3: Cross multiply
    66,134.19x = 99,207.59 × 21,761.31
  4. Step 4: Simplify right side
    66,134.19x = 2,158,887,011.54
  5. Step 5: Solve for x
    x = 2,158,887,011.54/66,134.19
  6. Step 6: Final answer
    x = 32,644.04

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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.