Home / 89,879.42-124,039.14-51,651.20

Finding the Fourth Proportional to 89,879.42, 124,039.14 and 51,651.20

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Solution

The fourth proportional to 89,879.42, 124,039.14 and 51,651.20 is: 71,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,879.42 : 124,039.14 = 51,651.20 : x
  2. Step 2: Convert to fraction form
    89,879.42/124,039.14 = 51,651.20/x
  3. Step 3: Cross multiply
    89,879.42x = 124,039.14 × 51,651.20
  4. Step 4: Simplify right side
    89,879.42x = 6,406,770,427.97
  5. Step 5: Solve for x
    x = 6,406,770,427.97/89,879.42
  6. Step 6: Final answer
    x = 71,281.84

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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.