Home / 55,007.10-82,510.65-19,947.90

Finding the Fourth Proportional to 55,007.10, 82,510.65 and 19,947.90

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Solution

The fourth proportional to 55,007.10, 82,510.65 and 19,947.90 is: 29,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,007.10 : 82,510.65 = 19,947.90 : x
  2. Step 2: Convert to fraction form
    55,007.10/82,510.65 = 19,947.90/x
  3. Step 3: Cross multiply
    55,007.10x = 82,510.65 × 19,947.90
  4. Step 4: Simplify right side
    55,007.10x = 1,645,914,195.14
  5. Step 5: Solve for x
    x = 1,645,914,195.14/55,007.10
  6. Step 6: Final answer
    x = 29,921.85

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.