Home / 84,563.19-116,431.65-71,789.91

Finding the Fourth Proportional to 84,563.19, 116,431.65 and 71,789.91

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Solution

The fourth proportional to 84,563.19, 116,431.65 and 71,789.91 is: 98,844.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,563.19 : 116,431.65 = 71,789.91 : x
  2. Step 2: Convert to fraction form
    84,563.19/116,431.65 = 71,789.91/x
  3. Step 3: Cross multiply
    84,563.19x = 116,431.65 × 71,789.91
  4. Step 4: Simplify right side
    84,563.19x = 8,358,617,674.65
  5. Step 5: Solve for x
    x = 8,358,617,674.65/84,563.19
  6. Step 6: Final answer
    x = 98,844.64

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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.