Home / 82,793.40-113,509.38-81,301.20

Finding the Fourth Proportional to 82,793.40, 113,509.38 and 81,301.20

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Solution

The fourth proportional to 82,793.40, 113,509.38 and 81,301.20 is: 111,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,793.40 : 113,509.38 = 81,301.20 : x
  2. Step 2: Convert to fraction form
    82,793.40/113,509.38 = 81,301.20/x
  3. Step 3: Cross multiply
    82,793.40x = 113,509.38 × 81,301.20
  4. Step 4: Simplify right side
    82,793.40x = 9,228,448,805.26
  5. Step 5: Solve for x
    x = 9,228,448,805.26/82,793.40
  6. Step 6: Final answer
    x = 111,463.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.