Home / 79,686.25-109,966.84-43,876.28

Finding the Fourth Proportional to 79,686.25, 109,966.84 and 43,876.28

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Solution

The fourth proportional to 79,686.25, 109,966.84 and 43,876.28 is: 60,549.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,686.25 : 109,966.84 = 43,876.28 : x
  2. Step 2: Convert to fraction form
    79,686.25/109,966.84 = 43,876.28/x
  3. Step 3: Cross multiply
    79,686.25x = 109,966.84 × 43,876.28
  4. Step 4: Simplify right side
    79,686.25x = 4,824,935,862.56
  5. Step 5: Solve for x
    x = 4,824,935,862.56/79,686.25
  6. Step 6: Final answer
    x = 60,549.16

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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.