Home / 84,259.29-126,405.51-28,098.66

Finding the Fourth Proportional to 84,259.29, 126,405.51 and 28,098.66

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Solution

The fourth proportional to 84,259.29, 126,405.51 and 28,098.66 is: 42,153.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,259.29 : 126,405.51 = 28,098.66 : x
  2. Step 2: Convert to fraction form
    84,259.29/126,405.51 = 28,098.66/x
  3. Step 3: Cross multiply
    84,259.29x = 126,405.51 × 28,098.66
  4. Step 4: Simplify right side
    84,259.29x = 3,551,825,447.62
  5. Step 5: Solve for x
    x = 3,551,825,447.62/84,259.29
  6. Step 6: Final answer
    x = 42,153.52

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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.