Home / 276,760.33-415,140.90-77,081.29

Finding the Fourth Proportional to 276,760.33, 415,140.90 and 77,081.29

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Solution

The fourth proportional to 276,760.33, 415,140.90 and 77,081.29 is: 115,622.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,760.33 : 415,140.90 = 77,081.29 : x
  2. Step 2: Convert to fraction form
    276,760.33/415,140.90 = 77,081.29/x
  3. Step 3: Cross multiply
    276,760.33x = 415,140.90 × 77,081.29
  4. Step 4: Simplify right side
    276,760.33x = 31,999,596,103.76
  5. Step 5: Solve for x
    x = 31,999,596,103.76/276,760.33
  6. Step 6: Final answer
    x = 115,622.05

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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.