Home / 81,293.16-121,952.96-25,120.17

Finding the Fourth Proportional to 81,293.16, 121,952.96 and 25,120.17

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Solution

The fourth proportional to 81,293.16, 121,952.96 and 25,120.17 is: 37,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,293.16 : 121,952.96 = 25,120.17 : x
  2. Step 2: Convert to fraction form
    81,293.16/121,952.96 = 25,120.17/x
  3. Step 3: Cross multiply
    81,293.16x = 121,952.96 × 25,120.17
  4. Step 4: Simplify right side
    81,293.16x = 3,063,479,087.20
  5. Step 5: Solve for x
    x = 3,063,479,087.20/81,293.16
  6. Step 6: Final answer
    x = 37,684.34

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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.