Home / 87,768.02-131,705.49-31,603.43

Finding the Fourth Proportional to 87,768.02, 131,705.49 and 31,603.43

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Solution

The fourth proportional to 87,768.02, 131,705.49 and 31,603.43 is: 47,424.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,768.02 : 131,705.49 = 31,603.43 : x
  2. Step 2: Convert to fraction form
    87,768.02/131,705.49 = 31,603.43/x
  3. Step 3: Cross multiply
    87,768.02x = 131,705.49 × 31,603.43
  4. Step 4: Simplify right side
    87,768.02x = 4,162,345,233.83
  5. Step 5: Solve for x
    x = 4,162,345,233.83/87,768.02
  6. Step 6: Final answer
    x = 47,424.39

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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.