Home / 51,540.13-77,309.16-16,479.78

Finding the Fourth Proportional to 51,540.13, 77,309.16 and 16,479.78

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Solution

The fourth proportional to 51,540.13, 77,309.16 and 16,479.78 is: 24,719.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,540.13 : 77,309.16 = 16,479.78 : x
  2. Step 2: Convert to fraction form
    51,540.13/77,309.16 = 16,479.78/x
  3. Step 3: Cross multiply
    51,540.13x = 77,309.16 × 16,479.78
  4. Step 4: Simplify right side
    51,540.13x = 1,274,037,948.78
  5. Step 5: Solve for x
    x = 1,274,037,948.78/51,540.13
  6. Step 6: Final answer
    x = 24,719.34

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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.