Home / 89,187.28-133,800.64-30,021

Finding the Fourth Proportional to 89,187.28, 133,800.64 and 30,021

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Solution

The fourth proportional to 89,187.28, 133,800.64 and 30,021 is: 45,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,187.28 : 133,800.64 = 30,021 : x
  2. Step 2: Convert to fraction form
    89,187.28/133,800.64 = 30,021/x
  3. Step 3: Cross multiply
    89,187.28x = 133,800.64 × 30,021
  4. Step 4: Simplify right side
    89,187.28x = 4,016,829,013.44
  5. Step 5: Solve for x
    x = 4,016,829,013.44/89,187.28
  6. Step 6: Final answer
    x = 45,038.14

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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.