Home / 78,213.11-117,315.07-48,233.12

Finding the Fourth Proportional to 78,213.11, 117,315.07 and 48,233.12

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Solution

The fourth proportional to 78,213.11, 117,315.07 and 48,233.12 is: 72,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,213.11 : 117,315.07 = 48,233.12 : x
  2. Step 2: Convert to fraction form
    78,213.11/117,315.07 = 48,233.12/x
  3. Step 3: Cross multiply
    78,213.11x = 117,315.07 × 48,233.12
  4. Step 4: Simplify right side
    78,213.11x = 5,658,471,849.12
  5. Step 5: Solve for x
    x = 5,658,471,849.12/78,213.11
  6. Step 6: Final answer
    x = 72,346.85

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1.5x scale

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.