Home / 78,418.23-117,631.84-22,253.95

Finding the Fourth Proportional to 78,418.23, 117,631.84 and 22,253.95

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Solution

The fourth proportional to 78,418.23, 117,631.84 and 22,253.95 is: 33,382.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,418.23 : 117,631.84 = 22,253.95 : x
  2. Step 2: Convert to fraction form
    78,418.23/117,631.84 = 22,253.95/x
  3. Step 3: Cross multiply
    78,418.23x = 117,631.84 × 22,253.95
  4. Step 4: Simplify right side
    78,418.23x = 2,617,773,085.77
  5. Step 5: Solve for x
    x = 2,617,773,085.77/78,418.23
  6. Step 6: Final answer
    x = 33,382.20

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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.