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Finding the Fourth Proportional to 83,494.80, 115,237.44 and 63,418.14

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Solution

The fourth proportional to 83,494.80, 115,237.44 and 63,418.14 is: 87,528.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,494.80 : 115,237.44 = 63,418.14 : x
  2. Step 2: Convert to fraction form
    83,494.80/115,237.44 = 63,418.14/x
  3. Step 3: Cross multiply
    83,494.80x = 115,237.44 × 63,418.14
  4. Step 4: Simplify right side
    83,494.80x = 7,308,144,103.16
  5. Step 5: Solve for x
    x = 7,308,144,103.16/83,494.80
  6. Step 6: Final answer
    x = 87,528.13

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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.