Home / 85,936.95-128,874.54-29,761.93

Finding the Fourth Proportional to 85,936.95, 128,874.54 and 29,761.93

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Solution

The fourth proportional to 85,936.95, 128,874.54 and 29,761.93 is: 44,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,936.95 : 128,874.54 = 29,761.93 : x
  2. Step 2: Convert to fraction form
    85,936.95/128,874.54 = 29,761.93/x
  3. Step 3: Cross multiply
    85,936.95x = 128,874.54 × 29,761.93
  4. Step 4: Simplify right side
    85,936.95x = 3,835,555,310.96
  5. Step 5: Solve for x
    x = 3,835,555,310.96/85,936.95
  6. Step 6: Final answer
    x = 44,632.20

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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.