Home / 81,292.16-121,951.46-25,119.17

Finding the Fourth Proportional to 81,292.16, 121,951.46 and 25,119.17

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Solution

The fourth proportional to 81,292.16, 121,951.46 and 25,119.17 is: 37,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,292.16 : 121,951.46 = 25,119.17 : x
  2. Step 2: Convert to fraction form
    81,292.16/121,951.46 = 25,119.17/x
  3. Step 3: Cross multiply
    81,292.16x = 121,951.46 × 25,119.17
  4. Step 4: Simplify right side
    81,292.16x = 3,063,319,455.49
  5. Step 5: Solve for x
    x = 3,063,319,455.49/81,292.16
  6. Step 6: Final answer
    x = 37,682.84

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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.