Home / 55,515.24-83,269.62-13,959

Finding the Fourth Proportional to 55,515.24, 83,269.62 and 13,959

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Solution

The fourth proportional to 55,515.24, 83,269.62 and 13,959 is: 20,937.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,515.24 : 83,269.62 = 13,959 : x
  2. Step 2: Convert to fraction form
    55,515.24/83,269.62 = 13,959/x
  3. Step 3: Cross multiply
    55,515.24x = 83,269.62 × 13,959
  4. Step 4: Simplify right side
    55,515.24x = 1,162,360,625.58
  5. Step 5: Solve for x
    x = 1,162,360,625.58/55,515.24
  6. Step 6: Final answer
    x = 20,937.69

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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.