Home / 89,316.13-123,231-57,503.44

Finding the Fourth Proportional to 89,316.13, 123,231 and 57,503.44

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Solution

The fourth proportional to 89,316.13, 123,231 and 57,503.44 is: 79,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,316.13 : 123,231 = 57,503.44 : x
  2. Step 2: Convert to fraction form
    89,316.13/123,231 = 57,503.44/x
  3. Step 3: Cross multiply
    89,316.13x = 123,231 × 57,503.44
  4. Step 4: Simplify right side
    89,316.13x = 7,086,206,414.64
  5. Step 5: Solve for x
    x = 7,086,206,414.64/89,316.13
  6. Step 6: Final answer
    x = 79,338.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.