Home / 79,217.10-109,309.23-47,374.38

Finding the Fourth Proportional to 79,217.10, 109,309.23 and 47,374.38

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Solution

The fourth proportional to 79,217.10, 109,309.23 and 47,374.38 is: 65,370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,217.10 : 109,309.23 = 47,374.38 : x
  2. Step 2: Convert to fraction form
    79,217.10/109,309.23 = 47,374.38/x
  3. Step 3: Cross multiply
    79,217.10x = 109,309.23 × 47,374.38
  4. Step 4: Simplify right side
    79,217.10x = 5,178,456,999.53
  5. Step 5: Solve for x
    x = 5,178,456,999.53/79,217.10
  6. Step 6: Final answer
    x = 65,370.44

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1.5x scale

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.