Home / 75,398.16-113,054.17-30,988.38

Finding the Fourth Proportional to 75,398.16, 113,054.17 and 30,988.38

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Solution

The fourth proportional to 75,398.16, 113,054.17 and 30,988.38 is: 46,464.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,398.16 : 113,054.17 = 30,988.38 : x
  2. Step 2: Convert to fraction form
    75,398.16/113,054.17 = 30,988.38/x
  3. Step 3: Cross multiply
    75,398.16x = 113,054.17 × 30,988.38
  4. Step 4: Simplify right side
    75,398.16x = 3,503,365,580.54
  5. Step 5: Solve for x
    x = 3,503,365,580.54/75,398.16
  6. Step 6: Final answer
    x = 46,464.87

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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.