Home / 87,080.56-120,196.01-51,291.20

Finding the Fourth Proportional to 87,080.56, 120,196.01 and 51,291.20

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Solution

The fourth proportional to 87,080.56, 120,196.01 and 51,291.20 is: 70,796.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,080.56 : 120,196.01 = 51,291.20 : x
  2. Step 2: Convert to fraction form
    87,080.56/120,196.01 = 51,291.20/x
  3. Step 3: Cross multiply
    87,080.56x = 120,196.01 × 51,291.20
  4. Step 4: Simplify right side
    87,080.56x = 6,164,997,588.11
  5. Step 5: Solve for x
    x = 6,164,997,588.11/87,080.56
  6. Step 6: Final answer
    x = 70,796.49

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1.5x scale

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.