Home / 51,085.90-76,529.20-28,831.96

Finding the Fourth Proportional to 51,085.90, 76,529.20 and 28,831.96

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Solution

The fourth proportional to 51,085.90, 76,529.20 and 28,831.96 is: 43,191.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,085.90 : 76,529.20 = 28,831.96 : x
  2. Step 2: Convert to fraction form
    51,085.90/76,529.20 = 28,831.96/x
  3. Step 3: Cross multiply
    51,085.90x = 76,529.20 × 28,831.96
  4. Step 4: Simplify right side
    51,085.90x = 2,206,486,833.23
  5. Step 5: Solve for x
    x = 2,206,486,833.23/51,085.90
  6. Step 6: Final answer
    x = 43,191.70

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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.