Home / 215,364.72-323,021.64-57,605.40

Finding the Fourth Proportional to 215,364.72, 323,021.64 and 57,605.40

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Solution

The fourth proportional to 215,364.72, 323,021.64 and 57,605.40 is: 86,401.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,364.72 : 323,021.64 = 57,605.40 : x
  2. Step 2: Convert to fraction form
    215,364.72/323,021.64 = 57,605.40/x
  3. Step 3: Cross multiply
    215,364.72x = 323,021.64 × 57,605.40
  4. Step 4: Simplify right side
    215,364.72x = 18,607,790,780.86
  5. Step 5: Solve for x
    x = 18,607,790,780.86/215,364.72
  6. Step 6: Final answer
    x = 86,401.30

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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.