Home / 77,697.12-116,295.03-40,205.61

Finding the Fourth Proportional to 77,697.12, 116,295.03 and 40,205.61

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Solution

The fourth proportional to 77,697.12, 116,295.03 and 40,205.61 is: 60,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,697.12 : 116,295.03 = 40,205.61 : x
  2. Step 2: Convert to fraction form
    77,697.12/116,295.03 = 40,205.61/x
  3. Step 3: Cross multiply
    77,697.12x = 116,295.03 × 40,205.61
  4. Step 4: Simplify right side
    77,697.12x = 4,675,712,621.12
  5. Step 5: Solve for x
    x = 4,675,712,621.12/77,697.12
  6. Step 6: Final answer
    x = 60,178.71

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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.