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Finding the Fourth Proportional to 85,494.61, 128,249.21 and 22,323.12

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Solution

The fourth proportional to 85,494.61, 128,249.21 and 22,323.12 is: 33,486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,494.61 : 128,249.21 = 22,323.12 : x
  2. Step 2: Convert to fraction form
    85,494.61/128,249.21 = 22,323.12/x
  3. Step 3: Cross multiply
    85,494.61x = 128,249.21 × 22,323.12
  4. Step 4: Simplify right side
    85,494.61x = 2,862,922,156.21
  5. Step 5: Solve for x
    x = 2,862,922,156.21/85,494.61
  6. Step 6: Final answer
    x = 33,486.58

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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.