Home / 81,826.56-112,918.68-53,531.64

Finding the Fourth Proportional to 81,826.56, 112,918.68 and 53,531.64

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Solution

The fourth proportional to 81,826.56, 112,918.68 and 53,531.64 is: 73,872.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,826.56 : 112,918.68 = 53,531.64 : x
  2. Step 2: Convert to fraction form
    81,826.56/112,918.68 = 53,531.64/x
  3. Step 3: Cross multiply
    81,826.56x = 112,918.68 × 53,531.64
  4. Step 4: Simplify right side
    81,826.56x = 6,044,722,127.04
  5. Step 5: Solve for x
    x = 6,044,722,127.04/81,826.56
  6. Step 6: Final answer
    x = 73,872.37

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1.5x scale

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.