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Finding the Fourth Proportional to 77,228.78, 115,846.43 and 27,309.29

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Solution

The fourth proportional to 77,228.78, 115,846.43 and 27,309.29 is: 40,965.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,228.78 : 115,846.43 = 27,309.29 : x
  2. Step 2: Convert to fraction form
    77,228.78/115,846.43 = 27,309.29/x
  3. Step 3: Cross multiply
    77,228.78x = 115,846.43 × 27,309.29
  4. Step 4: Simplify right side
    77,228.78x = 3,163,683,036.56
  5. Step 5: Solve for x
    x = 3,163,683,036.56/77,228.78
  6. Step 6: Final answer
    x = 40,965.08

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1.5x scale

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.