Home / 51,625.92-77,456.16-20,470.08

Finding the Fourth Proportional to 51,625.92, 77,456.16 and 20,470.08

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Solution

The fourth proportional to 51,625.92, 77,456.16 and 20,470.08 is: 30,711.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,625.92 : 77,456.16 = 20,470.08 : x
  2. Step 2: Convert to fraction form
    51,625.92/77,456.16 = 20,470.08/x
  3. Step 3: Cross multiply
    51,625.92x = 77,456.16 × 20,470.08
  4. Step 4: Simplify right side
    51,625.92x = 1,585,533,791.69
  5. Step 5: Solve for x
    x = 1,585,533,791.69/51,625.92
  6. Step 6: Final answer
    x = 30,711.97

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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.