Home / 82,088.23-123,132.36-19,758.73

Finding the Fourth Proportional to 82,088.23, 123,132.36 and 19,758.73

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Solution

The fourth proportional to 82,088.23, 123,132.36 and 19,758.73 is: 29,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,088.23 : 123,132.36 = 19,758.73 : x
  2. Step 2: Convert to fraction form
    82,088.23/123,132.36 = 19,758.73/x
  3. Step 3: Cross multiply
    82,088.23x = 123,132.36 × 19,758.73
  4. Step 4: Simplify right side
    82,088.23x = 2,432,939,055.50
  5. Step 5: Solve for x
    x = 2,432,939,055.50/82,088.23
  6. Step 6: Final answer
    x = 29,638.10

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Similar ratio
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1.5x scale

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.