Home / 87,554.79-131,319.09-31,386.42

Finding the Fourth Proportional to 87,554.79, 131,319.09 and 31,386.42

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Solution

The fourth proportional to 87,554.79, 131,319.09 and 31,386.42 is: 47,074.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,554.79 : 131,319.09 = 31,386.42 : x
  2. Step 2: Convert to fraction form
    87,554.79/131,319.09 = 31,386.42/x
  3. Step 3: Cross multiply
    87,554.79x = 131,319.09 × 31,386.42
  4. Step 4: Simplify right side
    87,554.79x = 4,121,636,112.76
  5. Step 5: Solve for x
    x = 4,121,636,112.76/87,554.79
  6. Step 6: Final answer
    x = 47,074.94

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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.