Home / 83,140.66-124,729.44-23,971.72

Finding the Fourth Proportional to 83,140.66, 124,729.44 and 23,971.72

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Solution

The fourth proportional to 83,140.66, 124,729.44 and 23,971.72 is: 35,962.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,140.66 : 124,729.44 = 23,971.72 : x
  2. Step 2: Convert to fraction form
    83,140.66/124,729.44 = 23,971.72/x
  3. Step 3: Cross multiply
    83,140.66x = 124,729.44 × 23,971.72
  4. Step 4: Simplify right side
    83,140.66x = 2,989,979,211.44
  5. Step 5: Solve for x
    x = 2,989,979,211.44/83,140.66
  6. Step 6: Final answer
    x = 35,962.90

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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.