Home / 82,427.80-123,313.65-71,456.35

Finding the Fourth Proportional to 82,427.80, 123,313.65 and 71,456.35

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Solution

The fourth proportional to 82,427.80, 123,313.65 and 71,456.35 is: 106,900.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,427.80 : 123,313.65 = 71,456.35 : x
  2. Step 2: Convert to fraction form
    82,427.80/123,313.65 = 71,456.35/x
  3. Step 3: Cross multiply
    82,427.80x = 123,313.65 × 71,456.35
  4. Step 4: Simplify right side
    82,427.80x = 8,811,543,334.18
  5. Step 5: Solve for x
    x = 8,811,543,334.18/82,427.80
  6. Step 6: Final answer
    x = 106,900.14

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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.