Home / 87,357.95-131,003.74-31,187.59

Finding the Fourth Proportional to 87,357.95, 131,003.74 and 31,187.59

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Solution

The fourth proportional to 87,357.95, 131,003.74 and 31,187.59 is: 46,769.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,357.95 : 131,003.74 = 31,187.59 : x
  2. Step 2: Convert to fraction form
    87,357.95/131,003.74 = 31,187.59/x
  3. Step 3: Cross multiply
    87,357.95x = 131,003.74 × 31,187.59
  4. Step 4: Simplify right side
    87,357.95x = 4,085,690,931.59
  5. Step 5: Solve for x
    x = 4,085,690,931.59/87,357.95
  6. Step 6: Final answer
    x = 46,769.54

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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.