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Finding the Fourth Proportional to 79,083.80, 109,132.38 and 47,270.24

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Solution

The fourth proportional to 79,083.80, 109,132.38 and 47,270.24 is: 65,230.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,083.80 : 109,132.38 = 47,270.24 : x
  2. Step 2: Convert to fraction form
    79,083.80/109,132.38 = 47,270.24/x
  3. Step 3: Cross multiply
    79,083.80x = 109,132.38 × 47,270.24
  4. Step 4: Simplify right side
    79,083.80x = 5,158,713,794.37
  5. Step 5: Solve for x
    x = 5,158,713,794.37/79,083.80
  6. Step 6: Final answer
    x = 65,230.98

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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.