Home / 68,724.56-94,831.04-40,419.92

Finding the Fourth Proportional to 68,724.56, 94,831.04 and 40,419.92

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Solution

The fourth proportional to 68,724.56, 94,831.04 and 40,419.92 is: 55,774.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,724.56 : 94,831.04 = 40,419.92 : x
  2. Step 2: Convert to fraction form
    68,724.56/94,831.04 = 40,419.92/x
  3. Step 3: Cross multiply
    68,724.56x = 94,831.04 × 40,419.92
  4. Step 4: Simplify right side
    68,724.56x = 3,833,063,050.32
  5. Step 5: Solve for x
    x = 3,833,063,050.32/68,724.56
  6. Step 6: Final answer
    x = 55,774.28

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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.