Home / 91,751.36-137,593.98-31,763.54

Finding the Fourth Proportional to 91,751.36, 137,593.98 and 31,763.54

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Solution

The fourth proportional to 91,751.36, 137,593.98 and 31,763.54 is: 47,633.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,751.36 : 137,593.98 = 31,763.54 : x
  2. Step 2: Convert to fraction form
    91,751.36/137,593.98 = 31,763.54/x
  3. Step 3: Cross multiply
    91,751.36x = 137,593.98 × 31,763.54
  4. Step 4: Simplify right side
    91,751.36x = 4,370,471,887.49
  5. Step 5: Solve for x
    x = 4,370,471,887.49/91,751.36
  6. Step 6: Final answer
    x = 47,633.86

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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.