Home / 211,670.28-317,508.66-53,901.72

Finding the Fourth Proportional to 211,670.28, 317,508.66 and 53,901.72

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Solution

The fourth proportional to 211,670.28, 317,508.66 and 53,901.72 is: 80,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,670.28 : 317,508.66 = 53,901.72 : x
  2. Step 2: Convert to fraction form
    211,670.28/317,508.66 = 53,901.72/x
  3. Step 3: Cross multiply
    211,670.28x = 317,508.66 × 53,901.72
  4. Step 4: Simplify right side
    211,670.28x = 17,114,262,888.90
  5. Step 5: Solve for x
    x = 17,114,262,888.90/211,670.28
  6. Step 6: Final answer
    x = 80,853.41

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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.