Home / 87,926.37-121,271.44-75,682.61

Finding the Fourth Proportional to 87,926.37, 121,271.44 and 75,682.61

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Solution

The fourth proportional to 87,926.37, 121,271.44 and 75,682.61 is: 104,384.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,926.37 : 121,271.44 = 75,682.61 : x
  2. Step 2: Convert to fraction form
    87,926.37/121,271.44 = 75,682.61/x
  3. Step 3: Cross multiply
    87,926.37x = 121,271.44 × 75,682.61
  4. Step 4: Simplify right side
    87,926.37x = 9,178,138,719.25
  5. Step 5: Solve for x
    x = 9,178,138,719.25/87,926.37
  6. Step 6: Final answer
    x = 104,384.37

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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.