Home / 91,865.72-137,818.25-31,896.07

Finding the Fourth Proportional to 91,865.72, 137,818.25 and 31,896.07

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Solution

The fourth proportional to 91,865.72, 137,818.25 and 31,896.07 is: 47,850.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,865.72 : 137,818.25 = 31,896.07 : x
  2. Step 2: Convert to fraction form
    91,865.72/137,818.25 = 31,896.07/x
  3. Step 3: Cross multiply
    91,865.72x = 137,818.25 × 31,896.07
  4. Step 4: Simplify right side
    91,865.72x = 4,395,860,284.47
  5. Step 5: Solve for x
    x = 4,395,860,284.47/91,865.72
  6. Step 6: Final answer
    x = 47,850.93

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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.