Home / 82,030.10-123,047.81-25,870.76

Finding the Fourth Proportional to 82,030.10, 123,047.81 and 25,870.76

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Solution

The fourth proportional to 82,030.10, 123,047.81 and 25,870.76 is: 38,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,030.10 : 123,047.81 = 25,870.76 : x
  2. Step 2: Convert to fraction form
    82,030.10/123,047.81 = 25,870.76/x
  3. Step 3: Cross multiply
    82,030.10x = 123,047.81 × 25,870.76
  4. Step 4: Simplify right side
    82,030.10x = 3,183,339,616.44
  5. Step 5: Solve for x
    x = 3,183,339,616.44/82,030.10
  6. Step 6: Final answer
    x = 38,806.97

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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.