Home / 51,767.16-77,689.32-38,470.80

Finding the Fourth Proportional to 51,767.16, 77,689.32 and 38,470.80

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Solution

The fourth proportional to 51,767.16, 77,689.32 and 38,470.80 is: 57,734.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,767.16 : 77,689.32 = 38,470.80 : x
  2. Step 2: Convert to fraction form
    51,767.16/77,689.32 = 38,470.80/x
  3. Step 3: Cross multiply
    51,767.16x = 77,689.32 × 38,470.80
  4. Step 4: Simplify right side
    51,767.16x = 2,988,770,291.86
  5. Step 5: Solve for x
    x = 2,988,770,291.86/51,767.16
  6. Step 6: Final answer
    x = 57,734.87

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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.