Home / 77,082.05-115,646.36-36,586.64

Finding the Fourth Proportional to 77,082.05, 115,646.36 and 36,586.64

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Solution

The fourth proportional to 77,082.05, 115,646.36 and 36,586.64 is: 54,891.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,082.05 : 115,646.36 = 36,586.64 : x
  2. Step 2: Convert to fraction form
    77,082.05/115,646.36 = 36,586.64/x
  3. Step 3: Cross multiply
    77,082.05x = 115,646.36 × 36,586.64
  4. Step 4: Simplify right side
    77,082.05x = 4,231,110,979.47
  5. Step 5: Solve for x
    x = 4,231,110,979.47/77,082.05
  6. Step 6: Final answer
    x = 54,891.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.