Home / 78,568.28-108,409.89-51,337.17

Finding the Fourth Proportional to 78,568.28, 108,409.89 and 51,337.17

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Solution

The fourth proportional to 78,568.28, 108,409.89 and 51,337.17 is: 70,835.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,568.28 : 108,409.89 = 51,337.17 : x
  2. Step 2: Convert to fraction form
    78,568.28/108,409.89 = 51,337.17/x
  3. Step 3: Cross multiply
    78,568.28x = 108,409.89 × 51,337.17
  4. Step 4: Simplify right side
    78,568.28x = 5,565,456,840.22
  5. Step 5: Solve for x
    x = 5,565,456,840.22/78,568.28
  6. Step 6: Final answer
    x = 70,835.93

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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.