Home / 75,732.52-113,521.82-31,383.40

Finding the Fourth Proportional to 75,732.52, 113,521.82 and 31,383.40

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Solution

The fourth proportional to 75,732.52, 113,521.82 and 31,383.40 is: 47,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,732.52 : 113,521.82 = 31,383.40 : x
  2. Step 2: Convert to fraction form
    75,732.52/113,521.82 = 31,383.40/x
  3. Step 3: Cross multiply
    75,732.52x = 113,521.82 × 31,383.40
  4. Step 4: Simplify right side
    75,732.52x = 3,562,700,685.79
  5. Step 5: Solve for x
    x = 3,562,700,685.79/75,732.52
  6. Step 6: Final answer
    x = 47,043.21

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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.