Home / 82,020.40-113,127.03-72,833.07

Finding the Fourth Proportional to 82,020.40, 113,127.03 and 72,833.07

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Solution

The fourth proportional to 82,020.40, 113,127.03 and 72,833.07 is: 100,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,020.40 : 113,127.03 = 72,833.07 : x
  2. Step 2: Convert to fraction form
    82,020.40/113,127.03 = 72,833.07/x
  3. Step 3: Cross multiply
    82,020.40x = 113,127.03 × 72,833.07
  4. Step 4: Simplify right side
    82,020.40x = 8,239,388,894.88
  5. Step 5: Solve for x
    x = 8,239,388,894.88/82,020.40
  6. Step 6: Final answer
    x = 100,455.36

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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.