Home / 55,040.08-82,572.66-19,979.72

Finding the Fourth Proportional to 55,040.08, 82,572.66 and 19,979.72

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Solution

The fourth proportional to 55,040.08, 82,572.66 and 19,979.72 is: 29,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,040.08 : 82,572.66 = 19,979.72 : x
  2. Step 2: Convert to fraction form
    55,040.08/82,572.66 = 19,979.72/x
  3. Step 3: Cross multiply
    55,040.08x = 82,572.66 × 19,979.72
  4. Step 4: Simplify right side
    55,040.08x = 1,649,778,626.46
  5. Step 5: Solve for x
    x = 1,649,778,626.46/55,040.08
  6. Step 6: Final answer
    x = 29,974.13

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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.