Home / 78,254.75-107,991.19-43,799.62

Finding the Fourth Proportional to 78,254.75, 107,991.19 and 43,799.62

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Solution

The fourth proportional to 78,254.75, 107,991.19 and 43,799.62 is: 60,443.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,254.75 : 107,991.19 = 43,799.62 : x
  2. Step 2: Convert to fraction form
    78,254.75/107,991.19 = 43,799.62/x
  3. Step 3: Cross multiply
    78,254.75x = 107,991.19 × 43,799.62
  4. Step 4: Simplify right side
    78,254.75x = 4,729,973,085.35
  5. Step 5: Solve for x
    x = 4,729,973,085.35/78,254.75
  6. Step 6: Final answer
    x = 60,443.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.