Home / 211,359.12-317,034.06-51,435.78

Finding the Fourth Proportional to 211,359.12, 317,034.06 and 51,435.78

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Solution

The fourth proportional to 211,359.12, 317,034.06 and 51,435.78 is: 77,152.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,359.12 : 317,034.06 = 51,435.78 : x
  2. Step 2: Convert to fraction form
    211,359.12/317,034.06 = 51,435.78/x
  3. Step 3: Cross multiply
    211,359.12x = 317,034.06 × 51,435.78
  4. Step 4: Simplify right side
    211,359.12x = 16,306,894,162.67
  5. Step 5: Solve for x
    x = 16,306,894,162.67/211,359.12
  6. Step 6: Final answer
    x = 77,152.55

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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.