Home / 81,293.42-121,953.33-25,120.42

Finding the Fourth Proportional to 81,293.42, 121,953.33 and 25,120.42

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Solution

The fourth proportional to 81,293.42, 121,953.33 and 25,120.42 is: 37,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,293.42 : 121,953.33 = 25,120.42 : x
  2. Step 2: Convert to fraction form
    81,293.42/121,953.33 = 25,120.42/x
  3. Step 3: Cross multiply
    81,293.42x = 121,953.33 × 25,120.42
  4. Step 4: Simplify right side
    81,293.42x = 3,063,518,565.12
  5. Step 5: Solve for x
    x = 3,063,518,565.12/81,293.42
  6. Step 6: Final answer
    x = 37,684.70

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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.