Home / 87,752.45-131,642.34-28,574.35

Finding the Fourth Proportional to 87,752.45, 131,642.34 and 28,574.35

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Solution

The fourth proportional to 87,752.45, 131,642.34 and 28,574.35 is: 42,865.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,752.45 : 131,642.34 = 28,574.35 : x
  2. Step 2: Convert to fraction form
    87,752.45/131,642.34 = 28,574.35/x
  3. Step 3: Cross multiply
    87,752.45x = 131,642.34 × 28,574.35
  4. Step 4: Simplify right side
    87,752.45x = 3,761,594,297.98
  5. Step 5: Solve for x
    x = 3,761,594,297.98/87,752.45
  6. Step 6: Final answer
    x = 42,865.97

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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.