Home / 78,260.80-117,378.96-22,105.12

Finding the Fourth Proportional to 78,260.80, 117,378.96 and 22,105.12

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Solution

The fourth proportional to 78,260.80, 117,378.96 and 22,105.12 is: 33,154.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,260.80 : 117,378.96 = 22,105.12 : x
  2. Step 2: Convert to fraction form
    78,260.80/117,378.96 = 22,105.12/x
  3. Step 3: Cross multiply
    78,260.80x = 117,378.96 × 22,105.12
  4. Step 4: Simplify right side
    78,260.80x = 2,594,675,996.28
  5. Step 5: Solve for x
    x = 2,594,675,996.28/78,260.80
  6. Step 6: Final answer
    x = 33,154.22

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1.5x scale

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.