Home / 80,953.73-121,357.08-28,334.51

Finding the Fourth Proportional to 80,953.73, 121,357.08 and 28,334.51

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Solution

The fourth proportional to 80,953.73, 121,357.08 and 28,334.51 is: 42,476.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,953.73 : 121,357.08 = 28,334.51 : x
  2. Step 2: Convert to fraction form
    80,953.73/121,357.08 = 28,334.51/x
  3. Step 3: Cross multiply
    80,953.73x = 121,357.08 × 28,334.51
  4. Step 4: Simplify right side
    80,953.73x = 3,438,592,648.37
  5. Step 5: Solve for x
    x = 3,438,592,648.37/80,953.73
  6. Step 6: Final answer
    x = 42,476.03

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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.