Home / 83,986.39-115,902.47-45,747.71

Finding the Fourth Proportional to 83,986.39, 115,902.47 and 45,747.71

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Solution

The fourth proportional to 83,986.39, 115,902.47 and 45,747.71 is: 63,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,986.39 : 115,902.47 = 45,747.71 : x
  2. Step 2: Convert to fraction form
    83,986.39/115,902.47 = 45,747.71/x
  3. Step 3: Cross multiply
    83,986.39x = 115,902.47 × 45,747.71
  4. Step 4: Simplify right side
    83,986.39x = 5,302,272,585.84
  5. Step 5: Solve for x
    x = 5,302,272,585.84/83,986.39
  6. Step 6: Final answer
    x = 63,132.52

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1.5x scale

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.