Home / 79,201.65-109,298.27-47,378.07

Finding the Fourth Proportional to 79,201.65, 109,298.27 and 47,378.07

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Solution

The fourth proportional to 79,201.65, 109,298.27 and 47,378.07 is: 65,381.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,201.65 : 109,298.27 = 47,378.07 : x
  2. Step 2: Convert to fraction form
    79,201.65/109,298.27 = 47,378.07/x
  3. Step 3: Cross multiply
    79,201.65x = 109,298.27 × 47,378.07
  4. Step 4: Simplify right side
    79,201.65x = 5,178,340,850.05
  5. Step 5: Solve for x
    x = 5,178,340,850.05/79,201.65
  6. Step 6: Final answer
    x = 65,381.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.