Home / 87,436.07-131,139.98-31,266.62

Finding the Fourth Proportional to 87,436.07, 131,139.98 and 31,266.62

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Solution

The fourth proportional to 87,436.07, 131,139.98 and 31,266.62 is: 46,894.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,436.07 : 131,139.98 = 31,266.62 : x
  2. Step 2: Convert to fraction form
    87,436.07/131,139.98 = 31,266.62/x
  3. Step 3: Cross multiply
    87,436.07x = 131,139.98 × 31,266.62
  4. Step 4: Simplify right side
    87,436.07x = 4,100,303,718.46
  5. Step 5: Solve for x
    x = 4,100,303,718.46/87,436.07
  6. Step 6: Final answer
    x = 46,894.88

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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.