Home / 75,825.38-113,689.40-31,482.74

Finding the Fourth Proportional to 75,825.38, 113,689.40 and 31,482.74

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Solution

The fourth proportional to 75,825.38, 113,689.40 and 31,482.74 is: 47,203.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,825.38 : 113,689.40 = 31,482.74 : x
  2. Step 2: Convert to fraction form
    75,825.38/113,689.40 = 31,482.74/x
  3. Step 3: Cross multiply
    75,825.38x = 113,689.40 × 31,482.74
  4. Step 4: Simplify right side
    75,825.38x = 3,579,253,820.96
  5. Step 5: Solve for x
    x = 3,579,253,820.96/75,825.38
  6. Step 6: Final answer
    x = 47,203.90

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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.