Home / 211,133.54-316,711.20-53,363.36

Finding the Fourth Proportional to 211,133.54, 316,711.20 and 53,363.36

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Solution

The fourth proportional to 211,133.54, 316,711.20 and 53,363.36 is: 80,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,133.54 : 316,711.20 = 53,363.36 : x
  2. Step 2: Convert to fraction form
    211,133.54/316,711.20 = 53,363.36/x
  3. Step 3: Cross multiply
    211,133.54x = 316,711.20 × 53,363.36
  4. Step 4: Simplify right side
    211,133.54x = 16,900,773,781.63
  5. Step 5: Solve for x
    x = 16,900,773,781.63/211,133.54
  6. Step 6: Final answer
    x = 80,047.79

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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.