Home / 81,887.76-122,831.65-22,723.45

Finding the Fourth Proportional to 81,887.76, 122,831.65 and 22,723.45

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Solution

The fourth proportional to 81,887.76, 122,831.65 and 22,723.45 is: 34,085.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,887.76 : 122,831.65 = 22,723.45 : x
  2. Step 2: Convert to fraction form
    81,887.76/122,831.65 = 22,723.45/x
  3. Step 3: Cross multiply
    81,887.76x = 122,831.65 × 22,723.45
  4. Step 4: Simplify right side
    81,887.76x = 2,791,158,857.19
  5. Step 5: Solve for x
    x = 2,791,158,857.19/81,887.76
  6. Step 6: Final answer
    x = 34,085.18

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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.