Home / 81,839.01-122,788.49-34,466.02

Finding the Fourth Proportional to 81,839.01, 122,788.49 and 34,466.02

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Solution

The fourth proportional to 81,839.01, 122,788.49 and 34,466.02 is: 51,711.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,839.01 : 122,788.49 = 34,466.02 : x
  2. Step 2: Convert to fraction form
    81,839.01/122,788.49 = 34,466.02/x
  3. Step 3: Cross multiply
    81,839.01x = 122,788.49 × 34,466.02
  4. Step 4: Simplify right side
    81,839.01x = 4,232,031,102.77
  5. Step 5: Solve for x
    x = 4,232,031,102.77/81,839.01
  6. Step 6: Final answer
    x = 51,711.66

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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.