Home / 87,790.32-131,699.16-28,612.26

Finding the Fourth Proportional to 87,790.32, 131,699.16 and 28,612.26

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Solution

The fourth proportional to 87,790.32, 131,699.16 and 28,612.26 is: 42,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,790.32 : 131,699.16 = 28,612.26 : x
  2. Step 2: Convert to fraction form
    87,790.32/131,699.16 = 28,612.26/x
  3. Step 3: Cross multiply
    87,790.32x = 131,699.16 × 28,612.26
  4. Step 4: Simplify right side
    87,790.32x = 3,768,210,607.70
  5. Step 5: Solve for x
    x = 3,768,210,607.70/87,790.32
  6. Step 6: Final answer
    x = 42,922.85

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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.