Home / 85,589.02-128,380.02-22,408.12

Finding the Fourth Proportional to 85,589.02, 128,380.02 and 22,408.12

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Solution

The fourth proportional to 85,589.02, 128,380.02 and 22,408.12 is: 33,611.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,589.02 : 128,380.02 = 22,408.12 : x
  2. Step 2: Convert to fraction form
    85,589.02/128,380.02 = 22,408.12/x
  3. Step 3: Cross multiply
    85,589.02x = 128,380.02 × 22,408.12
  4. Step 4: Simplify right side
    85,589.02x = 2,876,754,893.76
  5. Step 5: Solve for x
    x = 2,876,754,893.76/85,589.02
  6. Step 6: Final answer
    x = 33,611.26

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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.