Home / 89,187.89-133,691.18-55,931.18

Finding the Fourth Proportional to 89,187.89, 133,691.18 and 55,931.18

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Solution

The fourth proportional to 89,187.89, 133,691.18 and 55,931.18 is: 83,839.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,187.89 : 133,691.18 = 55,931.18 : x
  2. Step 2: Convert to fraction form
    89,187.89/133,691.18 = 55,931.18/x
  3. Step 3: Cross multiply
    89,187.89x = 133,691.18 × 55,931.18
  4. Step 4: Simplify right side
    89,187.89x = 7,477,504,504.88
  5. Step 5: Solve for x
    x = 7,477,504,504.88/89,187.89
  6. Step 6: Final answer
    x = 83,839.91

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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.