Home / 91,778.59-137,718.03-35,620.93

Finding the Fourth Proportional to 91,778.59, 137,718.03 and 35,620.93

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Solution

The fourth proportional to 91,778.59, 137,718.03 and 35,620.93 is: 53,450.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,778.59 : 137,718.03 = 35,620.93 : x
  2. Step 2: Convert to fraction form
    91,778.59/137,718.03 = 35,620.93/x
  3. Step 3: Cross multiply
    91,778.59x = 137,718.03 × 35,620.93
  4. Step 4: Simplify right side
    91,778.59x = 4,905,644,306.37
  5. Step 5: Solve for x
    x = 4,905,644,306.37/91,778.59
  6. Step 6: Final answer
    x = 53,450.86

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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.