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Finding the Fourth Proportional to 83,419.74, 115,119.29 and 45,694.62

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Solution

The fourth proportional to 83,419.74, 115,119.29 and 45,694.62 is: 63,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,419.74 : 115,119.29 = 45,694.62 : x
  2. Step 2: Convert to fraction form
    83,419.74/115,119.29 = 45,694.62/x
  3. Step 3: Cross multiply
    83,419.74x = 115,119.29 × 45,694.62
  4. Step 4: Simplify right side
    83,419.74x = 5,260,332,211.22
  5. Step 5: Solve for x
    x = 5,260,332,211.22/83,419.74
  6. Step 6: Final answer
    x = 63,058.60

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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.