Home / 81,243.16-121,820.08-25,067.92

Finding the Fourth Proportional to 81,243.16, 121,820.08 and 25,067.92

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Solution

The fourth proportional to 81,243.16, 121,820.08 and 25,067.92 is: 37,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,243.16 : 121,820.08 = 25,067.92 : x
  2. Step 2: Convert to fraction form
    81,243.16/121,820.08 = 25,067.92/x
  3. Step 3: Cross multiply
    81,243.16x = 121,820.08 × 25,067.92
  4. Step 4: Simplify right side
    81,243.16x = 3,053,776,019.83
  5. Step 5: Solve for x
    x = 3,053,776,019.83/81,243.16
  6. Step 6: Final answer
    x = 37,588.10

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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.