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Finding the Fourth Proportional to 83,654.80, 115,438.44 and 45,921.04

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Solution

The fourth proportional to 83,654.80, 115,438.44 and 45,921.04 is: 63,368.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,654.80 : 115,438.44 = 45,921.04 : x
  2. Step 2: Convert to fraction form
    83,654.80/115,438.44 = 45,921.04/x
  3. Step 3: Cross multiply
    83,654.80x = 115,438.44 × 45,921.04
  4. Step 4: Simplify right side
    83,654.80x = 5,301,053,220.78
  5. Step 5: Solve for x
    x = 5,301,053,220.78/83,654.80
  6. Step 6: Final answer
    x = 63,368.19

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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.