Home / 87,622.70-131,434.05-43,256.30

Finding the Fourth Proportional to 87,622.70, 131,434.05 and 43,256.30

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Solution

The fourth proportional to 87,622.70, 131,434.05 and 43,256.30 is: 64,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,622.70 : 131,434.05 = 43,256.30 : x
  2. Step 2: Convert to fraction form
    87,622.70/131,434.05 = 43,256.30/x
  3. Step 3: Cross multiply
    87,622.70x = 131,434.05 × 43,256.30
  4. Step 4: Simplify right side
    87,622.70x = 5,685,350,697.02
  5. Step 5: Solve for x
    x = 5,685,350,697.02/87,622.70
  6. Step 6: Final answer
    x = 64,884.45

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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.