Home / 66,213.47-99,332.46-21,843.29

Finding the Fourth Proportional to 66,213.47, 99,332.46 and 21,843.29

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Solution

The fourth proportional to 66,213.47, 99,332.46 and 21,843.29 is: 32,768.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,213.47 : 99,332.46 = 21,843.29 : x
  2. Step 2: Convert to fraction form
    66,213.47/99,332.46 = 21,843.29/x
  3. Step 3: Cross multiply
    66,213.47x = 99,332.46 × 21,843.29
  4. Step 4: Simplify right side
    66,213.47x = 2,169,747,978.52
  5. Step 5: Solve for x
    x = 2,169,747,978.52/66,213.47
  6. Step 6: Final answer
    x = 32,768.98

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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.