Home / 75,801.72-113,653.92-31,459.08

Finding the Fourth Proportional to 75,801.72, 113,653.92 and 31,459.08

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Solution

The fourth proportional to 75,801.72, 113,653.92 and 31,459.08 is: 47,168.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,801.72 : 113,653.92 = 31,459.08 : x
  2. Step 2: Convert to fraction form
    75,801.72/113,653.92 = 31,459.08/x
  3. Step 3: Cross multiply
    75,801.72x = 113,653.92 × 31,459.08
  4. Step 4: Simplify right side
    75,801.72x = 3,575,447,761.59
  5. Step 5: Solve for x
    x = 3,575,447,761.59/75,801.72
  6. Step 6: Final answer
    x = 47,168.43

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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.