Home / 66,721.77-100,116.59-29,272.13

Finding the Fourth Proportional to 66,721.77, 100,116.59 and 29,272.13

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Solution

The fourth proportional to 66,721.77, 100,116.59 and 29,272.13 is: 43,923.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,721.77 : 100,116.59 = 29,272.13 : x
  2. Step 2: Convert to fraction form
    66,721.77/100,116.59 = 29,272.13/x
  3. Step 3: Cross multiply
    66,721.77x = 100,116.59 × 29,272.13
  4. Step 4: Simplify right side
    66,721.77x = 2,930,625,337.05
  5. Step 5: Solve for x
    x = 2,930,625,337.05/66,721.77
  6. Step 6: Final answer
    x = 43,923.08

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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.