Home / 86,631.40-119,550.03-48,391.57

Finding the Fourth Proportional to 86,631.40, 119,550.03 and 48,391.57

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Solution

The fourth proportional to 86,631.40, 119,550.03 and 48,391.57 is: 66,779.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,631.40 : 119,550.03 = 48,391.57 : x
  2. Step 2: Convert to fraction form
    86,631.40/119,550.03 = 48,391.57/x
  3. Step 3: Cross multiply
    86,631.40x = 119,550.03 × 48,391.57
  4. Step 4: Simplify right side
    86,631.40x = 5,785,213,645.25
  5. Step 5: Solve for x
    x = 5,785,213,645.25/86,631.40
  6. Step 6: Final answer
    x = 66,779.64

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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.