Home / 83,543.40-115,296.01-47,732.64

Finding the Fourth Proportional to 83,543.40, 115,296.01 and 47,732.64

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Solution

The fourth proportional to 83,543.40, 115,296.01 and 47,732.64 is: 65,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,543.40 : 115,296.01 = 47,732.64 : x
  2. Step 2: Convert to fraction form
    83,543.40/115,296.01 = 47,732.64/x
  3. Step 3: Cross multiply
    83,543.40x = 115,296.01 × 47,732.64
  4. Step 4: Simplify right side
    83,543.40x = 5,503,382,938.77
  5. Step 5: Solve for x
    x = 5,503,382,938.77/83,543.40
  6. Step 6: Final answer
    x = 65,874.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.