Home / 81,285.01-121,915.19-22,125.29

Finding the Fourth Proportional to 81,285.01, 121,915.19 and 22,125.29

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Solution

The fourth proportional to 81,285.01, 121,915.19 and 22,125.29 is: 33,184.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,285.01 : 121,915.19 = 22,125.29 : x
  2. Step 2: Convert to fraction form
    81,285.01/121,915.19 = 22,125.29/x
  3. Step 3: Cross multiply
    81,285.01x = 121,915.19 × 22,125.29
  4. Step 4: Simplify right side
    81,285.01x = 2,697,408,934.16
  5. Step 5: Solve for x
    x = 2,697,408,934.16/81,285.01
  6. Step 6: Final answer
    x = 33,184.58

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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.