Home / 74,888.47-111,759.53-66,901.29

Finding the Fourth Proportional to 74,888.47, 111,759.53 and 66,901.29

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Solution

The fourth proportional to 74,888.47, 111,759.53 and 66,901.29 is: 99,839.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,888.47 : 111,759.53 = 66,901.29 : x
  2. Step 2: Convert to fraction form
    74,888.47/111,759.53 = 66,901.29/x
  3. Step 3: Cross multiply
    74,888.47x = 111,759.53 × 66,901.29
  4. Step 4: Simplify right side
    74,888.47x = 7,476,856,726.79
  5. Step 5: Solve for x
    x = 7,476,856,726.79/74,888.47
  6. Step 6: Final answer
    x = 99,839.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.