Home / 84,581.25-126,873.93-28,422.17

Finding the Fourth Proportional to 84,581.25, 126,873.93 and 28,422.17

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Solution

The fourth proportional to 84,581.25, 126,873.93 and 28,422.17 is: 42,633.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,581.25 : 126,873.93 = 28,422.17 : x
  2. Step 2: Convert to fraction form
    84,581.25/126,873.93 = 28,422.17/x
  3. Step 3: Cross multiply
    84,581.25x = 126,873.93 × 28,422.17
  4. Step 4: Simplify right side
    84,581.25x = 3,606,032,407.03
  5. Step 5: Solve for x
    x = 3,606,032,407.03/84,581.25
  6. Step 6: Final answer
    x = 42,633.95

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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.