Home / 89,208.59-133,813.12-30,085.79

Finding the Fourth Proportional to 89,208.59, 133,813.12 and 30,085.79

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Solution

The fourth proportional to 89,208.59, 133,813.12 and 30,085.79 is: 45,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,208.59 : 133,813.12 = 30,085.79 : x
  2. Step 2: Convert to fraction form
    89,208.59/133,813.12 = 30,085.79/x
  3. Step 3: Cross multiply
    89,208.59x = 133,813.12 × 30,085.79
  4. Step 4: Simplify right side
    89,208.59x = 4,025,873,352.35
  5. Step 5: Solve for x
    x = 4,025,873,352.35/89,208.59
  6. Step 6: Final answer
    x = 45,128.76

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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.