Home / 66,186.20-99,136.74-31,073.24

Finding the Fourth Proportional to 66,186.20, 99,136.74 and 31,073.24

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Solution

The fourth proportional to 66,186.20, 99,136.74 and 31,073.24 is: 46,542.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,186.20 : 99,136.74 = 31,073.24 : x
  2. Step 2: Convert to fraction form
    66,186.20/99,136.74 = 31,073.24/x
  3. Step 3: Cross multiply
    66,186.20x = 99,136.74 × 31,073.24
  4. Step 4: Simplify right side
    66,186.20x = 3,080,499,714.84
  5. Step 5: Solve for x
    x = 3,080,499,714.84/66,186.20
  6. Step 6: Final answer
    x = 46,542.93

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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.