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Finding the Fourth Proportional to 87,351, 130,920.79 and 62,010.65

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Solution

The fourth proportional to 87,351, 130,920.79 and 62,010.65 is: 92,940.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,351 : 130,920.79 = 62,010.65 : x
  2. Step 2: Convert to fraction form
    87,351/130,920.79 = 62,010.65/x
  3. Step 3: Cross multiply
    87,351x = 130,920.79 × 62,010.65
  4. Step 4: Simplify right side
    87,351x = 8,118,483,286.41
  5. Step 5: Solve for x
    x = 8,118,483,286.41/87,351
  6. Step 6: Final answer
    x = 92,940.93

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1.5x scale

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.