Home / 61,201.68-91,728.70-31,603.38

Finding the Fourth Proportional to 61,201.68, 91,728.70 and 31,603.38

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Solution

The fourth proportional to 61,201.68, 91,728.70 and 31,603.38 is: 47,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,201.68 : 91,728.70 = 31,603.38 : x
  2. Step 2: Convert to fraction form
    61,201.68/91,728.70 = 31,603.38/x
  3. Step 3: Cross multiply
    61,201.68x = 91,728.70 × 31,603.38
  4. Step 4: Simplify right side
    61,201.68x = 2,898,936,963.01
  5. Step 5: Solve for x
    x = 2,898,936,963.01/61,201.68
  6. Step 6: Final answer
    x = 47,366.95

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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.