Home / 81,904.95-122,857.35-22,740.60

Finding the Fourth Proportional to 81,904.95, 122,857.35 and 22,740.60

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Solution

The fourth proportional to 81,904.95, 122,857.35 and 22,740.60 is: 34,110.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,904.95 : 122,857.35 = 22,740.60 : x
  2. Step 2: Convert to fraction form
    81,904.95/122,857.35 = 22,740.60/x
  3. Step 3: Cross multiply
    81,904.95x = 122,857.35 × 22,740.60
  4. Step 4: Simplify right side
    81,904.95x = 2,793,849,853.41
  5. Step 5: Solve for x
    x = 2,793,849,853.41/81,904.95
  6. Step 6: Final answer
    x = 34,110.88

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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.