Home / 82,047.39-123,327.99-54,146.74

Finding the Fourth Proportional to 82,047.39, 123,327.99 and 54,146.74

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Solution

The fourth proportional to 82,047.39, 123,327.99 and 54,146.74 is: 81,389.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,047.39 : 123,327.99 = 54,146.74 : x
  2. Step 2: Convert to fraction form
    82,047.39/123,327.99 = 54,146.74/x
  3. Step 3: Cross multiply
    82,047.39x = 123,327.99 × 54,146.74
  4. Step 4: Simplify right side
    82,047.39x = 6,677,808,609.25
  5. Step 5: Solve for x
    x = 6,677,808,609.25/82,047.39
  6. Step 6: Final answer
    x = 81,389.65

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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.