Home / 81,836.16-122,754.24-25,684.93

Finding the Fourth Proportional to 81,836.16, 122,754.24 and 25,684.93

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Solution

The fourth proportional to 81,836.16, 122,754.24 and 25,684.93 is: 38,527.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,836.16 : 122,754.24 = 25,684.93 : x
  2. Step 2: Convert to fraction form
    81,836.16/122,754.24 = 25,684.93/x
  3. Step 3: Cross multiply
    81,836.16x = 122,754.24 × 25,684.93
  4. Step 4: Simplify right side
    81,836.16x = 3,152,934,061.60
  5. Step 5: Solve for x
    x = 3,152,934,061.60/81,836.16
  6. Step 6: Final answer
    x = 38,527.40

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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.