Home / 81,486.02-122,263.89-34,112.18

Finding the Fourth Proportional to 81,486.02, 122,263.89 and 34,112.18

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Solution

The fourth proportional to 81,486.02, 122,263.89 and 34,112.18 is: 51,182.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,486.02 : 122,263.89 = 34,112.18 : x
  2. Step 2: Convert to fraction form
    81,486.02/122,263.89 = 34,112.18/x
  3. Step 3: Cross multiply
    81,486.02x = 122,263.89 × 34,112.18
  4. Step 4: Simplify right side
    81,486.02x = 4,170,687,823.18
  5. Step 5: Solve for x
    x = 4,170,687,823.18/81,486.02
  6. Step 6: Final answer
    x = 51,182.86

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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.