Home / 75,689.96-113,587.64-31,316.94

Finding the Fourth Proportional to 75,689.96, 113,587.64 and 31,316.94

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Solution

The fourth proportional to 75,689.96, 113,587.64 and 31,316.94 is: 46,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,689.96 : 113,587.64 = 31,316.94 : x
  2. Step 2: Convert to fraction form
    75,689.96/113,587.64 = 31,316.94/x
  3. Step 3: Cross multiply
    75,689.96x = 113,587.64 × 31,316.94
  4. Step 4: Simplify right side
    75,689.96x = 3,557,217,150.04
  5. Step 5: Solve for x
    x = 3,557,217,150.04/75,689.96
  6. Step 6: Final answer
    x = 46,997.22

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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.