Home / 84,142.40-126,239.27-50,445.86

Finding the Fourth Proportional to 84,142.40, 126,239.27 and 50,445.86

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Solution

The fourth proportional to 84,142.40, 126,239.27 and 50,445.86 is: 75,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,142.40 : 126,239.27 = 50,445.86 : x
  2. Step 2: Convert to fraction form
    84,142.40/126,239.27 = 50,445.86/x
  3. Step 3: Cross multiply
    84,142.40x = 126,239.27 × 50,445.86
  4. Step 4: Simplify right side
    84,142.40x = 6,368,247,657.50
  5. Step 5: Solve for x
    x = 6,368,247,657.50/84,142.40
  6. Step 6: Final answer
    x = 75,684.17

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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.