Home / 79,082.74-109,256.76-66,313.38

Finding the Fourth Proportional to 79,082.74, 109,256.76 and 66,313.38

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Solution

The fourth proportional to 79,082.74, 109,256.76 and 66,313.38 is: 91,615.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,082.74 : 109,256.76 = 66,313.38 : x
  2. Step 2: Convert to fraction form
    79,082.74/109,256.76 = 66,313.38/x
  3. Step 3: Cross multiply
    79,082.74x = 109,256.76 × 66,313.38
  4. Step 4: Simplify right side
    79,082.74x = 7,245,185,043.45
  5. Step 5: Solve for x
    x = 7,245,185,043.45/79,082.74
  6. Step 6: Final answer
    x = 91,615.25

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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.