Home / 83,756.97-125,579.91-30,442.62

Finding the Fourth Proportional to 83,756.97, 125,579.91 and 30,442.62

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Solution

The fourth proportional to 83,756.97, 125,579.91 and 30,442.62 is: 45,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,756.97 : 125,579.91 = 30,442.62 : x
  2. Step 2: Convert to fraction form
    83,756.97/125,579.91 = 30,442.62/x
  3. Step 3: Cross multiply
    83,756.97x = 125,579.91 × 30,442.62
  4. Step 4: Simplify right side
    83,756.97x = 3,822,980,851.86
  5. Step 5: Solve for x
    x = 3,822,980,851.86/83,756.97
  6. Step 6: Final answer
    x = 45,643.73

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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.