Home / 68,671.24-103,008.23-45,128.87

Finding the Fourth Proportional to 68,671.24, 103,008.23 and 45,128.87

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Solution

The fourth proportional to 68,671.24, 103,008.23 and 45,128.87 is: 67,694.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,671.24 : 103,008.23 = 45,128.87 : x
  2. Step 2: Convert to fraction form
    68,671.24/103,008.23 = 45,128.87/x
  3. Step 3: Cross multiply
    68,671.24x = 103,008.23 × 45,128.87
  4. Step 4: Simplify right side
    68,671.24x = 4,648,645,252.06
  5. Step 5: Solve for x
    x = 4,648,645,252.06/68,671.24
  6. Step 6: Final answer
    x = 67,694.21

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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.