Home / 90,645.22-135,932.86-34,455.79

Finding the Fourth Proportional to 90,645.22, 135,932.86 and 34,455.79

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Solution

The fourth proportional to 90,645.22, 135,932.86 and 34,455.79 is: 51,670.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,645.22 : 135,932.86 = 34,455.79 : x
  2. Step 2: Convert to fraction form
    90,645.22/135,932.86 = 34,455.79/x
  3. Step 3: Cross multiply
    90,645.22x = 135,932.86 × 34,455.79
  4. Step 4: Simplify right side
    90,645.22x = 4,683,673,226.32
  5. Step 5: Solve for x
    x = 4,683,673,226.32/90,645.22
  6. Step 6: Final answer
    x = 51,670.39

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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.