Home / 87,087.66-120,182.29-48,855.68

Finding the Fourth Proportional to 87,087.66, 120,182.29 and 48,855.68

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Solution

The fourth proportional to 87,087.66, 120,182.29 and 48,855.68 is: 67,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,087.66 : 120,182.29 = 48,855.68 : x
  2. Step 2: Convert to fraction form
    87,087.66/120,182.29 = 48,855.68/x
  3. Step 3: Cross multiply
    87,087.66x = 120,182.29 × 48,855.68
  4. Step 4: Simplify right side
    87,087.66x = 5,871,587,680.22
  5. Step 5: Solve for x
    x = 5,871,587,680.22/87,087.66
  6. Step 6: Final answer
    x = 67,421.58

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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.