Home / 87,775.76-121,132.68-50,050.64

Finding the Fourth Proportional to 87,775.76, 121,132.68 and 50,050.64

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Solution

The fourth proportional to 87,775.76, 121,132.68 and 50,050.64 is: 69,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,775.76 : 121,132.68 = 50,050.64 : x
  2. Step 2: Convert to fraction form
    87,775.76/121,132.68 = 50,050.64/x
  3. Step 3: Cross multiply
    87,775.76x = 121,132.68 × 50,050.64
  4. Step 4: Simplify right side
    87,775.76x = 6,062,768,158.92
  5. Step 5: Solve for x
    x = 6,062,768,158.92/87,775.76
  6. Step 6: Final answer
    x = 69,071.10

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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.