Home / 79,274.19-109,334.85-69,693.72

Finding the Fourth Proportional to 79,274.19, 109,334.85 and 69,693.72

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Solution

The fourth proportional to 79,274.19, 109,334.85 and 69,693.72 is: 96,121.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,274.19 : 109,334.85 = 69,693.72 : x
  2. Step 2: Convert to fraction form
    79,274.19/109,334.85 = 69,693.72/x
  3. Step 3: Cross multiply
    79,274.19x = 109,334.85 × 69,693.72
  4. Step 4: Simplify right side
    79,274.19x = 7,619,952,422.14
  5. Step 5: Solve for x
    x = 7,619,952,422.14/79,274.19
  6. Step 6: Final answer
    x = 96,121.48

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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.