Home / 51,612.30-71,229.06-30,395.70

Finding the Fourth Proportional to 51,612.30, 71,229.06 and 30,395.70

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Solution

The fourth proportional to 51,612.30, 71,229.06 and 30,395.70 is: 41,948.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,612.30 : 71,229.06 = 30,395.70 : x
  2. Step 2: Convert to fraction form
    51,612.30/71,229.06 = 30,395.70/x
  3. Step 3: Cross multiply
    51,612.30x = 71,229.06 × 30,395.70
  4. Step 4: Simplify right side
    51,612.30x = 2,165,057,139.04
  5. Step 5: Solve for x
    x = 2,165,057,139.04/51,612.30
  6. Step 6: Final answer
    x = 41,948.47

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1.5x scale

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.