Home / 84,402.45-126,610.38-28,242.86

Finding the Fourth Proportional to 84,402.45, 126,610.38 and 28,242.86

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Solution

The fourth proportional to 84,402.45, 126,610.38 and 28,242.86 is: 42,366.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,402.45 : 126,610.38 = 28,242.86 : x
  2. Step 2: Convert to fraction form
    84,402.45/126,610.38 = 28,242.86/x
  3. Step 3: Cross multiply
    84,402.45x = 126,610.38 × 28,242.86
  4. Step 4: Simplify right side
    84,402.45x = 3,575,838,603.83
  5. Step 5: Solve for x
    x = 3,575,838,603.83/84,402.45
  6. Step 6: Final answer
    x = 42,366.53

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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.