Home / 77,211.72-115,835.40-32,839.92

Finding the Fourth Proportional to 77,211.72, 115,835.40 and 32,839.92

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Solution

The fourth proportional to 77,211.72, 115,835.40 and 32,839.92 is: 49,267.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,211.72 : 115,835.40 = 32,839.92 : x
  2. Step 2: Convert to fraction form
    77,211.72/115,835.40 = 32,839.92/x
  3. Step 3: Cross multiply
    77,211.72x = 115,835.40 × 32,839.92
  4. Step 4: Simplify right side
    77,211.72x = 3,804,025,269.17
  5. Step 5: Solve for x
    x = 3,804,025,269.17/77,211.72
  6. Step 6: Final answer
    x = 49,267.46

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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.