Home / 78,752.27-117,626.42-71,244.33

Finding the Fourth Proportional to 78,752.27, 117,626.42 and 71,244.33

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Solution

The fourth proportional to 78,752.27, 117,626.42 and 71,244.33 is: 106,412.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,752.27 : 117,626.42 = 71,244.33 : x
  2. Step 2: Convert to fraction form
    78,752.27/117,626.42 = 71,244.33/x
  3. Step 3: Cross multiply
    78,752.27x = 117,626.42 × 71,244.33
  4. Step 4: Simplify right side
    78,752.27x = 8,380,215,320.40
  5. Step 5: Solve for x
    x = 8,380,215,320.40/78,752.27
  6. Step 6: Final answer
    x = 106,412.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.