Home / 92,775.64-139,144.32-45,342.04

Finding the Fourth Proportional to 92,775.64, 139,144.32 and 45,342.04

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Solution

The fourth proportional to 92,775.64, 139,144.32 and 45,342.04 is: 68,003.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,775.64 : 139,144.32 = 45,342.04 : x
  2. Step 2: Convert to fraction form
    92,775.64/139,144.32 = 45,342.04/x
  3. Step 3: Cross multiply
    92,775.64x = 139,144.32 × 45,342.04
  4. Step 4: Simplify right side
    92,775.64x = 6,309,087,323.21
  5. Step 5: Solve for x
    x = 6,309,087,323.21/92,775.64
  6. Step 6: Final answer
    x = 68,003.71

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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.