Home / 87,825.02-131,758.47-28,660.79

Finding the Fourth Proportional to 87,825.02, 131,758.47 and 28,660.79

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Solution

The fourth proportional to 87,825.02, 131,758.47 and 28,660.79 is: 42,998.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,825.02 : 131,758.47 = 28,660.79 : x
  2. Step 2: Convert to fraction form
    87,825.02/131,758.47 = 28,660.79/x
  3. Step 3: Cross multiply
    87,825.02x = 131,758.47 × 28,660.79
  4. Step 4: Simplify right side
    87,825.02x = 3,776,301,180.60
  5. Step 5: Solve for x
    x = 3,776,301,180.60/87,825.02
  6. Step 6: Final answer
    x = 42,998.01

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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.