Home / 87,584.02-120,859-57,321.42

Finding the Fourth Proportional to 87,584.02, 120,859 and 57,321.42

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Solution

The fourth proportional to 87,584.02, 120,859 and 57,321.42 is: 79,099.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,584.02 : 120,859 = 57,321.42 : x
  2. Step 2: Convert to fraction form
    87,584.02/120,859 = 57,321.42/x
  3. Step 3: Cross multiply
    87,584.02x = 120,859 × 57,321.42
  4. Step 4: Simplify right side
    87,584.02x = 6,927,809,499.78
  5. Step 5: Solve for x
    x = 6,927,809,499.78/87,584.02
  6. Step 6: Final answer
    x = 79,099.01

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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.