Home / 84,229.68-126,317.28-28,054.77

Finding the Fourth Proportional to 84,229.68, 126,317.28 and 28,054.77

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Solution

The fourth proportional to 84,229.68, 126,317.28 and 28,054.77 is: 42,073.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,229.68 : 126,317.28 = 28,054.77 : x
  2. Step 2: Convert to fraction form
    84,229.68/126,317.28 = 28,054.77/x
  3. Step 3: Cross multiply
    84,229.68x = 126,317.28 × 28,054.77
  4. Step 4: Simplify right side
    84,229.68x = 3,543,802,237.43
  5. Step 5: Solve for x
    x = 3,543,802,237.43/84,229.68
  6. Step 6: Final answer
    x = 42,073.08

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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.