Home / 63,138.32-87,128.13-34,457.25

Finding the Fourth Proportional to 63,138.32, 87,128.13 and 34,457.25

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Solution

The fourth proportional to 63,138.32, 87,128.13 and 34,457.25 is: 47,549.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,138.32 : 87,128.13 = 34,457.25 : x
  2. Step 2: Convert to fraction form
    63,138.32/87,128.13 = 34,457.25/x
  3. Step 3: Cross multiply
    63,138.32x = 87,128.13 × 34,457.25
  4. Step 4: Simplify right side
    63,138.32x = 3,002,195,757.44
  5. Step 5: Solve for x
    x = 3,002,195,757.44/63,138.32
  6. Step 6: Final answer
    x = 47,549.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.