Home / 40,776.42-61,139.48-14,116.21

Finding the Fourth Proportional to 40,776.42, 61,139.48 and 14,116.21

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Solution

The fourth proportional to 40,776.42, 61,139.48 and 14,116.21 is: 21,165.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,776.42 : 61,139.48 = 14,116.21 : x
  2. Step 2: Convert to fraction form
    40,776.42/61,139.48 = 14,116.21/x
  3. Step 3: Cross multiply
    40,776.42x = 61,139.48 × 14,116.21
  4. Step 4: Simplify right side
    40,776.42x = 863,057,738.97
  5. Step 5: Solve for x
    x = 863,057,738.97/40,776.42
  6. Step 6: Final answer
    x = 21,165.61

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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.