Home / 81,079.29-121,693.68-41,126.31

Finding the Fourth Proportional to 81,079.29, 121,693.68 and 41,126.31

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Solution

The fourth proportional to 81,079.29, 121,693.68 and 41,126.31 is: 61,727.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,079.29 : 121,693.68 = 41,126.31 : x
  2. Step 2: Convert to fraction form
    81,079.29/121,693.68 = 41,126.31/x
  3. Step 3: Cross multiply
    81,079.29x = 121,693.68 × 41,126.31
  4. Step 4: Simplify right side
    81,079.29x = 5,004,812,008.72
  5. Step 5: Solve for x
    x = 5,004,812,008.72/81,079.29
  6. Step 6: Final answer
    x = 61,727.38

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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.