Home / 276,711.57-415,026.03-77,011.14

Finding the Fourth Proportional to 276,711.57, 415,026.03 and 77,011.14

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Solution

The fourth proportional to 276,711.57, 415,026.03 and 77,011.14 is: 115,505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,711.57 : 415,026.03 = 77,011.14 : x
  2. Step 2: Convert to fraction form
    276,711.57/415,026.03 = 77,011.14/x
  3. Step 3: Cross multiply
    276,711.57x = 415,026.03 × 77,011.14
  4. Step 4: Simplify right side
    276,711.57x = 31,961,627,699.97
  5. Step 5: Solve for x
    x = 31,961,627,699.97/276,711.57
  6. Step 6: Final answer
    x = 115,505.21

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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.