Home / 211,631.88-317,457.54-53,861.70

Finding the Fourth Proportional to 211,631.88, 317,457.54 and 53,861.70

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Solution

The fourth proportional to 211,631.88, 317,457.54 and 53,861.70 is: 80,795.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,631.88 : 317,457.54 = 53,861.70 : x
  2. Step 2: Convert to fraction form
    211,631.88/317,457.54 = 53,861.70/x
  3. Step 3: Cross multiply
    211,631.88x = 317,457.54 × 53,861.70
  4. Step 4: Simplify right side
    211,631.88x = 17,098,802,782.22
  5. Step 5: Solve for x
    x = 17,098,802,782.22/211,631.88
  6. Step 6: Final answer
    x = 80,795.02

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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.