Home / 40,776.40-61,137.06-14,115.52

Finding the Fourth Proportional to 40,776.40, 61,137.06 and 14,115.52

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Solution

The fourth proportional to 40,776.40, 61,137.06 and 14,115.52 is: 21,163.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,776.40 : 61,137.06 = 14,115.52 : x
  2. Step 2: Convert to fraction form
    40,776.40/61,137.06 = 14,115.52/x
  3. Step 3: Cross multiply
    40,776.40x = 61,137.06 × 14,115.52
  4. Step 4: Simplify right side
    40,776.40x = 862,981,393.17
  5. Step 5: Solve for x
    x = 862,981,393.17/40,776.40
  6. Step 6: Final answer
    x = 21,163.75

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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.