Home / 291,736.10-437,565.27-81,356.42

Finding the Fourth Proportional to 291,736.10, 437,565.27 and 81,356.42

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Solution

The fourth proportional to 291,736.10, 437,565.27 and 81,356.42 is: 122,023.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,736.10 : 437,565.27 = 81,356.42 : x
  2. Step 2: Convert to fraction form
    291,736.10/437,565.27 = 81,356.42/x
  3. Step 3: Cross multiply
    291,736.10x = 437,565.27 × 81,356.42
  4. Step 4: Simplify right side
    291,736.10x = 35,598,743,883.53
  5. Step 5: Solve for x
    x = 35,598,743,883.53/291,736.10
  6. Step 6: Final answer
    x = 122,023.79

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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.