Home / 83,420.20-115,119.35-45,179.14

Finding the Fourth Proportional to 83,420.20, 115,119.35 and 45,179.14

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Solution

The fourth proportional to 83,420.20, 115,119.35 and 45,179.14 is: 62,346.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,420.20 : 115,119.35 = 45,179.14 : x
  2. Step 2: Convert to fraction form
    83,420.20/115,119.35 = 45,179.14/x
  3. Step 3: Cross multiply
    83,420.20x = 115,119.35 × 45,179.14
  4. Step 4: Simplify right side
    83,420.20x = 5,200,993,230.36
  5. Step 5: Solve for x
    x = 5,200,993,230.36/83,420.20
  6. Step 6: Final answer
    x = 62,346.93

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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.