Home / 51,338.88-77,011.20-14,400

Finding the Fourth Proportional to 51,338.88, 77,011.20 and 14,400

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Solution

The fourth proportional to 51,338.88, 77,011.20 and 14,400 is: 21,600.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,338.88 : 77,011.20 = 14,400 : x
  2. Step 2: Convert to fraction form
    51,338.88/77,011.20 = 14,400/x
  3. Step 3: Cross multiply
    51,338.88x = 77,011.20 × 14,400
  4. Step 4: Simplify right side
    51,338.88x = 1,108,961,280
  5. Step 5: Solve for x
    x = 1,108,961,280/51,338.88
  6. Step 6: Final answer
    x = 21,600.81

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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.