Home / 89,401.12-133,989.88-45,039.04

Finding the Fourth Proportional to 89,401.12, 133,989.88 and 45,039.04

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Solution

The fourth proportional to 89,401.12, 133,989.88 and 45,039.04 is: 67,502.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,401.12 : 133,989.88 = 45,039.04 : x
  2. Step 2: Convert to fraction form
    89,401.12/133,989.88 = 45,039.04/x
  3. Step 3: Cross multiply
    89,401.12x = 133,989.88 × 45,039.04
  4. Step 4: Simplify right side
    89,401.12x = 6,034,775,564.92
  5. Step 5: Solve for x
    x = 6,034,775,564.92/89,401.12
  6. Step 6: Final answer
    x = 67,502.24

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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.