Home / 83,974.16-115,788.20-62,717.52

Finding the Fourth Proportional to 83,974.16, 115,788.20 and 62,717.52

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Solution

The fourth proportional to 83,974.16, 115,788.20 and 62,717.52 is: 86,478.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,974.16 : 115,788.20 = 62,717.52 : x
  2. Step 2: Convert to fraction form
    83,974.16/115,788.20 = 62,717.52/x
  3. Step 3: Cross multiply
    83,974.16x = 115,788.20 × 62,717.52
  4. Step 4: Simplify right side
    83,974.16x = 7,261,948,749.26
  5. Step 5: Solve for x
    x = 7,261,948,749.26/83,974.16
  6. Step 6: Final answer
    x = 86,478.37

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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.