Home / 79,258.26-109,377.66-47,428.50

Finding the Fourth Proportional to 79,258.26, 109,377.66 and 47,428.50

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Solution

The fourth proportional to 79,258.26, 109,377.66 and 47,428.50 is: 65,452.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,258.26 : 109,377.66 = 47,428.50 : x
  2. Step 2: Convert to fraction form
    79,258.26/109,377.66 = 47,428.50/x
  3. Step 3: Cross multiply
    79,258.26x = 109,377.66 × 47,428.50
  4. Step 4: Simplify right side
    79,258.26x = 5,187,618,347.31
  5. Step 5: Solve for x
    x = 5,187,618,347.31/79,258.26
  6. Step 6: Final answer
    x = 65,452.08

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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.