Home / 89,619.73-134,430-36,312.73

Finding the Fourth Proportional to 89,619.73, 134,430 and 36,312.73

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Solution

The fourth proportional to 89,619.73, 134,430 and 36,312.73 is: 54,469.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,619.73 : 134,430 = 36,312.73 : x
  2. Step 2: Convert to fraction form
    89,619.73/134,430 = 36,312.73/x
  3. Step 3: Cross multiply
    89,619.73x = 134,430 × 36,312.73
  4. Step 4: Simplify right side
    89,619.73x = 4,881,520,293.90
  5. Step 5: Solve for x
    x = 4,881,520,293.90/89,619.73
  6. Step 6: Final answer
    x = 54,469.26

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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.