Home / 79,299.12-109,416.24-53,825.20

Finding the Fourth Proportional to 79,299.12, 109,416.24 and 53,825.20

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Solution

The fourth proportional to 79,299.12, 109,416.24 and 53,825.20 is: 74,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,299.12 : 109,416.24 = 53,825.20 : x
  2. Step 2: Convert to fraction form
    79,299.12/109,416.24 = 53,825.20/x
  3. Step 3: Cross multiply
    79,299.12x = 109,416.24 × 53,825.20
  4. Step 4: Simplify right side
    79,299.12x = 5,889,351,001.25
  5. Step 5: Solve for x
    x = 5,889,351,001.25/79,299.12
  6. Step 6: Final answer
    x = 74,267.55

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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.