Home / 211,131.54-316,708.20-53,361.36

Finding the Fourth Proportional to 211,131.54, 316,708.20 and 53,361.36

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Solution

The fourth proportional to 211,131.54, 316,708.20 and 53,361.36 is: 80,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,131.54 : 316,708.20 = 53,361.36 : x
  2. Step 2: Convert to fraction form
    211,131.54/316,708.20 = 53,361.36/x
  3. Step 3: Cross multiply
    211,131.54x = 316,708.20 × 53,361.36
  4. Step 4: Simplify right side
    211,131.54x = 16,899,980,275.15
  5. Step 5: Solve for x
    x = 16,899,980,275.15/211,131.54
  6. Step 6: Final answer
    x = 80,044.79

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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.