Home / 75,286.07-112,731.82-52,978.67

Finding the Fourth Proportional to 75,286.07, 112,731.82 and 52,978.67

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Solution

The fourth proportional to 75,286.07, 112,731.82 and 52,978.67 is: 79,329.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,286.07 : 112,731.82 = 52,978.67 : x
  2. Step 2: Convert to fraction form
    75,286.07/112,731.82 = 52,978.67/x
  3. Step 3: Cross multiply
    75,286.07x = 112,731.82 × 52,978.67
  4. Step 4: Simplify right side
    75,286.07x = 5,972,381,890.28
  5. Step 5: Solve for x
    x = 5,972,381,890.28/75,286.07
  6. Step 6: Final answer
    x = 79,329.18

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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.