Home / 43,678-65,814.46-38,904.04

Finding the Fourth Proportional to 43,678, 65,814.46 and 38,904.04

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Solution

The fourth proportional to 43,678, 65,814.46 and 38,904.04 is: 58,621.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,678 : 65,814.46 = 38,904.04 : x
  2. Step 2: Convert to fraction form
    43,678/65,814.46 = 38,904.04/x
  3. Step 3: Cross multiply
    43,678x = 65,814.46 × 38,904.04
  4. Step 4: Simplify right side
    43,678x = 2,560,448,384.42
  5. Step 5: Solve for x
    x = 2,560,448,384.42/43,678
  6. Step 6: Final answer
    x = 58,621.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.