Home / 78,723.44-118,108.17-25,414.17

Finding the Fourth Proportional to 78,723.44, 118,108.17 and 25,414.17

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Solution

The fourth proportional to 78,723.44, 118,108.17 and 25,414.17 is: 38,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,723.44 : 118,108.17 = 25,414.17 : x
  2. Step 2: Convert to fraction form
    78,723.44/118,108.17 = 25,414.17/x
  3. Step 3: Cross multiply
    78,723.44x = 118,108.17 × 25,414.17
  4. Step 4: Simplify right side
    78,723.44x = 3,001,621,110.77
  5. Step 5: Solve for x
    x = 3,001,621,110.77/78,723.44
  6. Step 6: Final answer
    x = 38,128.68

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1.5x scale

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.