Home / 58,778.76-81,112.46-31,920.69

Finding the Fourth Proportional to 58,778.76, 81,112.46 and 31,920.69

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Solution

The fourth proportional to 58,778.76, 81,112.46 and 31,920.69 is: 44,049.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,778.76 : 81,112.46 = 31,920.69 : x
  2. Step 2: Convert to fraction form
    58,778.76/81,112.46 = 31,920.69/x
  3. Step 3: Cross multiply
    58,778.76x = 81,112.46 × 31,920.69
  4. Step 4: Simplify right side
    58,778.76x = 2,589,165,531.19
  5. Step 5: Solve for x
    x = 2,589,165,531.19/58,778.76
  6. Step 6: Final answer
    x = 44,049.34

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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.