Home / 66,218.56-99,306.78-21,837.04

Finding the Fourth Proportional to 66,218.56, 99,306.78 and 21,837.04

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Solution

The fourth proportional to 66,218.56, 99,306.78 and 21,837.04 is: 32,748.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,218.56 : 99,306.78 = 21,837.04 : x
  2. Step 2: Convert to fraction form
    66,218.56/99,306.78 = 21,837.04/x
  3. Step 3: Cross multiply
    66,218.56x = 99,306.78 × 21,837.04
  4. Step 4: Simplify right side
    66,218.56x = 2,168,566,127.13
  5. Step 5: Solve for x
    x = 2,168,566,127.13/66,218.56
  6. Step 6: Final answer
    x = 32,748.61

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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.