Home / 90,559.38-124,965.81-54,769.08

Finding the Fourth Proportional to 90,559.38, 124,965.81 and 54,769.08

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Solution

The fourth proportional to 90,559.38, 124,965.81 and 54,769.08 is: 75,577.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,559.38 : 124,965.81 = 54,769.08 : x
  2. Step 2: Convert to fraction form
    90,559.38/124,965.81 = 54,769.08/x
  3. Step 3: Cross multiply
    90,559.38x = 124,965.81 × 54,769.08
  4. Step 4: Simplify right side
    90,559.38x = 6,844,262,445.15
  5. Step 5: Solve for x
    x = 6,844,262,445.15/90,559.38
  6. Step 6: Final answer
    x = 75,577.62

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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.