Home / 82,728.21-124,092.32-57,816.91

Finding the Fourth Proportional to 82,728.21, 124,092.32 and 57,816.91

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Solution

The fourth proportional to 82,728.21, 124,092.32 and 57,816.91 is: 86,725.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,728.21 : 124,092.32 = 57,816.91 : x
  2. Step 2: Convert to fraction form
    82,728.21/124,092.32 = 57,816.91/x
  3. Step 3: Cross multiply
    82,728.21x = 124,092.32 × 57,816.91
  4. Step 4: Simplify right side
    82,728.21x = 7,174,634,186.90
  5. Step 5: Solve for x
    x = 7,174,634,186.90/82,728.21
  6. Step 6: Final answer
    x = 86,725.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.