Home / 83,949.78-125,310.46-73,985.57

Finding the Fourth Proportional to 83,949.78, 125,310.46 and 73,985.57

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Solution

The fourth proportional to 83,949.78, 125,310.46 and 73,985.57 is: 110,437.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,949.78 : 125,310.46 = 73,985.57 : x
  2. Step 2: Convert to fraction form
    83,949.78/125,310.46 = 73,985.57/x
  3. Step 3: Cross multiply
    83,949.78x = 125,310.46 × 73,985.57
  4. Step 4: Simplify right side
    83,949.78x = 9,271,165,810.06
  5. Step 5: Solve for x
    x = 9,271,165,810.06/83,949.78
  6. Step 6: Final answer
    x = 110,437.05

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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.