Home / 78,091.16-117,184.94-30,697.95

Finding the Fourth Proportional to 78,091.16, 117,184.94 and 30,697.95

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Solution

The fourth proportional to 78,091.16, 117,184.94 and 30,697.95 is: 46,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,091.16 : 117,184.94 = 30,697.95 : x
  2. Step 2: Convert to fraction form
    78,091.16/117,184.94 = 30,697.95/x
  3. Step 3: Cross multiply
    78,091.16x = 117,184.94 × 30,697.95
  4. Step 4: Simplify right side
    78,091.16x = 3,597,337,275.38
  5. Step 5: Solve for x
    x = 3,597,337,275.38/78,091.16
  6. Step 6: Final answer
    x = 46,065.87

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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.