Home / 77,220.30-106,576.11-55,991.82

Finding the Fourth Proportional to 77,220.30, 106,576.11 and 55,991.82

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Solution

The fourth proportional to 77,220.30, 106,576.11 and 55,991.82 is: 77,277.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,220.30 : 106,576.11 = 55,991.82 : x
  2. Step 2: Convert to fraction form
    77,220.30/106,576.11 = 55,991.82/x
  3. Step 3: Cross multiply
    77,220.30x = 106,576.11 × 55,991.82
  4. Step 4: Simplify right side
    77,220.30x = 5,967,390,367.42
  5. Step 5: Solve for x
    x = 5,967,390,367.42/77,220.30
  6. Step 6: Final answer
    x = 77,277.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.