Home / 87,349.98-130,992.72-31,175.06

Finding the Fourth Proportional to 87,349.98, 130,992.72 and 31,175.06

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Solution

The fourth proportional to 87,349.98, 130,992.72 and 31,175.06 is: 46,751.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,349.98 : 130,992.72 = 31,175.06 : x
  2. Step 2: Convert to fraction form
    87,349.98/130,992.72 = 31,175.06/x
  3. Step 3: Cross multiply
    87,349.98x = 130,992.72 × 31,175.06
  4. Step 4: Simplify right side
    87,349.98x = 4,083,705,905.56
  5. Step 5: Solve for x
    x = 4,083,705,905.56/87,349.98
  6. Step 6: Final answer
    x = 46,751.08

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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.