Home / 83,669.76-115,464.69-47,861.28

Finding the Fourth Proportional to 83,669.76, 115,464.69 and 47,861.28

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Solution

The fourth proportional to 83,669.76, 115,464.69 and 47,861.28 is: 66,048.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,669.76 : 115,464.69 = 47,861.28 : x
  2. Step 2: Convert to fraction form
    83,669.76/115,464.69 = 47,861.28/x
  3. Step 3: Cross multiply
    83,669.76x = 115,464.69 × 47,861.28
  4. Step 4: Simplify right side
    83,669.76x = 5,526,287,858.20
  5. Step 5: Solve for x
    x = 5,526,287,858.20/83,669.76
  6. Step 6: Final answer
    x = 66,048.81

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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.