Home / 80,847.92-121,257.44-28,272.48

Finding the Fourth Proportional to 80,847.92, 121,257.44 and 28,272.48

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Solution

The fourth proportional to 80,847.92, 121,257.44 and 28,272.48 is: 42,403.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,847.92 : 121,257.44 = 28,272.48 : x
  2. Step 2: Convert to fraction form
    80,847.92/121,257.44 = 28,272.48/x
  3. Step 3: Cross multiply
    80,847.92x = 121,257.44 × 28,272.48
  4. Step 4: Simplify right side
    80,847.92x = 3,428,248,547.25
  5. Step 5: Solve for x
    x = 3,428,248,547.25/80,847.92
  6. Step 6: Final answer
    x = 42,403.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.