Home / 83,938.10-125,861.07-57,649.46

Finding the Fourth Proportional to 83,938.10, 125,861.07 and 57,649.46

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Solution

The fourth proportional to 83,938.10, 125,861.07 and 57,649.46 is: 86,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,938.10 : 125,861.07 = 57,649.46 : x
  2. Step 2: Convert to fraction form
    83,938.10/125,861.07 = 57,649.46/x
  3. Step 3: Cross multiply
    83,938.10x = 125,861.07 × 57,649.46
  4. Step 4: Simplify right side
    83,938.10x = 7,255,822,720.52
  5. Step 5: Solve for x
    x = 7,255,822,720.52/83,938.10
  6. Step 6: Final answer
    x = 86,442.54

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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.