Home / 78,284.38-117,446.61-25,694.32

Finding the Fourth Proportional to 78,284.38, 117,446.61 and 25,694.32

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Solution

The fourth proportional to 78,284.38, 117,446.61 and 25,694.32 is: 38,548.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,284.38 : 117,446.61 = 25,694.32 : x
  2. Step 2: Convert to fraction form
    78,284.38/117,446.61 = 25,694.32/x
  3. Step 3: Cross multiply
    78,284.38x = 117,446.61 × 25,694.32
  4. Step 4: Simplify right side
    78,284.38x = 3,017,710,780.26
  5. Step 5: Solve for x
    x = 3,017,710,780.26/78,284.38
  6. Step 6: Final answer
    x = 38,548.06

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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.