Home / 87,617.60-131,512.80-43,294.40

Finding the Fourth Proportional to 87,617.60, 131,512.80 and 43,294.40

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Solution

The fourth proportional to 87,617.60, 131,512.80 and 43,294.40 is: 64,984.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,617.60 : 131,512.80 = 43,294.40 : x
  2. Step 2: Convert to fraction form
    87,617.60/131,512.80 = 43,294.40/x
  3. Step 3: Cross multiply
    87,617.60x = 131,512.80 × 43,294.40
  4. Step 4: Simplify right side
    87,617.60x = 5,693,767,768.32
  5. Step 5: Solve for x
    x = 5,693,767,768.32/87,617.60
  6. Step 6: Final answer
    x = 64,984.29

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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.