Home / 91,845.28-137,820.52-35,678.12

Finding the Fourth Proportional to 91,845.28, 137,820.52 and 35,678.12

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Solution

The fourth proportional to 91,845.28, 137,820.52 and 35,678.12 is: 53,537.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,845.28 : 137,820.52 = 35,678.12 : x
  2. Step 2: Convert to fraction form
    91,845.28/137,820.52 = 35,678.12/x
  3. Step 3: Cross multiply
    91,845.28x = 137,820.52 × 35,678.12
  4. Step 4: Simplify right side
    91,845.28x = 4,917,177,051.02
  5. Step 5: Solve for x
    x = 4,917,177,051.02/91,845.28
  6. Step 6: Final answer
    x = 53,537.61

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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.