Home / 87,041.44-120,126.90-51,240.28

Finding the Fourth Proportional to 87,041.44, 120,126.90 and 51,240.28

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Solution

The fourth proportional to 87,041.44, 120,126.90 and 51,240.28 is: 70,717.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,041.44 : 120,126.90 = 51,240.28 : x
  2. Step 2: Convert to fraction form
    87,041.44/120,126.90 = 51,240.28/x
  3. Step 3: Cross multiply
    87,041.44x = 120,126.90 × 51,240.28
  4. Step 4: Simplify right side
    87,041.44x = 6,155,335,991.53
  5. Step 5: Solve for x
    x = 6,155,335,991.53/87,041.44
  6. Step 6: Final answer
    x = 70,717.30

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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.