Home / 81,890.52-122,758.02-32,002.62

Finding the Fourth Proportional to 81,890.52, 122,758.02 and 32,002.62

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Solution

The fourth proportional to 81,890.52, 122,758.02 and 32,002.62 is: 47,973.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,890.52 : 122,758.02 = 32,002.62 : x
  2. Step 2: Convert to fraction form
    81,890.52/122,758.02 = 32,002.62/x
  3. Step 3: Cross multiply
    81,890.52x = 122,758.02 × 32,002.62
  4. Step 4: Simplify right side
    81,890.52x = 3,928,578,266.01
  5. Step 5: Solve for x
    x = 3,928,578,266.01/81,890.52
  6. Step 6: Final answer
    x = 47,973.54

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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.