Home / 84,678.87-116,760.49-69,316.55

Finding the Fourth Proportional to 84,678.87, 116,760.49 and 69,316.55

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Solution

The fourth proportional to 84,678.87, 116,760.49 and 69,316.55 is: 95,577.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,678.87 : 116,760.49 = 69,316.55 : x
  2. Step 2: Convert to fraction form
    84,678.87/116,760.49 = 69,316.55/x
  3. Step 3: Cross multiply
    84,678.87x = 116,760.49 × 69,316.55
  4. Step 4: Simplify right side
    84,678.87x = 8,093,434,461.72
  5. Step 5: Solve for x
    x = 8,093,434,461.72/84,678.87
  6. Step 6: Final answer
    x = 95,577.97

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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.