Home / 51,455.85-77,220.67-21,894.45

Finding the Fourth Proportional to 51,455.85, 77,220.67 and 21,894.45

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Solution

The fourth proportional to 51,455.85, 77,220.67 and 21,894.45 is: 32,857.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,455.85 : 77,220.67 = 21,894.45 : x
  2. Step 2: Convert to fraction form
    51,455.85/77,220.67 = 21,894.45/x
  3. Step 3: Cross multiply
    51,455.85x = 77,220.67 × 21,894.45
  4. Step 4: Simplify right side
    51,455.85x = 1,690,704,098.28
  5. Step 5: Solve for x
    x = 1,690,704,098.28/51,455.85
  6. Step 6: Final answer
    x = 32,857.37

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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.