Home / 74,037.75-102,172.89-40,046.91

Finding the Fourth Proportional to 74,037.75, 102,172.89 and 40,046.91

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Solution

The fourth proportional to 74,037.75, 102,172.89 and 40,046.91 is: 55,265.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,037.75 : 102,172.89 = 40,046.91 : x
  2. Step 2: Convert to fraction form
    74,037.75/102,172.89 = 40,046.91/x
  3. Step 3: Cross multiply
    74,037.75x = 102,172.89 × 40,046.91
  4. Step 4: Simplify right side
    74,037.75x = 4,091,708,530.27
  5. Step 5: Solve for x
    x = 4,091,708,530.27/74,037.75
  6. Step 6: Final answer
    x = 55,265.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.