Home / 276,746.72-415,131.01-77,084.55

Finding the Fourth Proportional to 276,746.72, 415,131.01 and 77,084.55

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Solution

The fourth proportional to 276,746.72, 415,131.01 and 77,084.55 is: 115,629.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,746.72 : 415,131.01 = 77,084.55 : x
  2. Step 2: Convert to fraction form
    276,746.72/415,131.01 = 77,084.55/x
  3. Step 3: Cross multiply
    276,746.72x = 415,131.01 × 77,084.55
  4. Step 4: Simplify right side
    276,746.72x = 32,000,186,711.47
  5. Step 5: Solve for x
    x = 32,000,186,711.47/276,746.72
  6. Step 6: Final answer
    x = 115,629.87

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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.