Home / 211,356.12-317,029.57-51,432.77

Finding the Fourth Proportional to 211,356.12, 317,029.57 and 51,432.77

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Solution

The fourth proportional to 211,356.12, 317,029.57 and 51,432.77 is: 77,148.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,356.12 : 317,029.57 = 51,432.77 : x
  2. Step 2: Convert to fraction form
    211,356.12/317,029.57 = 51,432.77/x
  3. Step 3: Cross multiply
    211,356.12x = 317,029.57 × 51,432.77
  4. Step 4: Simplify right side
    211,356.12x = 16,305,709,765.66
  5. Step 5: Solve for x
    x = 16,305,709,765.66/211,356.12
  6. Step 6: Final answer
    x = 77,148.04

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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.