Home / 212,579.15-318,887.08-54,806.27

Finding the Fourth Proportional to 212,579.15, 318,887.08 and 54,806.27

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Solution

The fourth proportional to 212,579.15, 318,887.08 and 54,806.27 is: 82,214.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,579.15 : 318,887.08 = 54,806.27 : x
  2. Step 2: Convert to fraction form
    212,579.15/318,887.08 = 54,806.27/x
  3. Step 3: Cross multiply
    212,579.15x = 318,887.08 × 54,806.27
  4. Step 4: Simplify right side
    212,579.15x = 17,477,011,405.99
  5. Step 5: Solve for x
    x = 17,477,011,405.99/212,579.15
  6. Step 6: Final answer
    x = 82,214.14

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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.