Home / 75,915.73-113,942.70-40,406.86

Finding the Fourth Proportional to 75,915.73, 113,942.70 and 40,406.86

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Solution

The fourth proportional to 75,915.73, 113,942.70 and 40,406.86 is: 60,647.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,915.73 : 113,942.70 = 40,406.86 : x
  2. Step 2: Convert to fraction form
    75,915.73/113,942.70 = 40,406.86/x
  3. Step 3: Cross multiply
    75,915.73x = 113,942.70 × 40,406.86
  4. Step 4: Simplify right side
    75,915.73x = 4,604,066,726.92
  5. Step 5: Solve for x
    x = 4,604,066,726.92/75,915.73
  6. Step 6: Final answer
    x = 60,647.07

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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.