Home / 69,919.73-96,486.10-40,850.78

Finding the Fourth Proportional to 69,919.73, 96,486.10 and 40,850.78

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Solution

The fourth proportional to 69,919.73, 96,486.10 and 40,850.78 is: 56,372.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,919.73 : 96,486.10 = 40,850.78 : x
  2. Step 2: Convert to fraction form
    69,919.73/96,486.10 = 40,850.78/x
  3. Step 3: Cross multiply
    69,919.73x = 96,486.10 × 40,850.78
  4. Step 4: Simplify right side
    69,919.73x = 3,941,532,444.16
  5. Step 5: Solve for x
    x = 3,941,532,444.16/69,919.73
  6. Step 6: Final answer
    x = 56,372.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.