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Finding the Fourth Proportional to 88,079.78, 132,119.12 and 21,520.26

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Solution

The fourth proportional to 88,079.78, 132,119.12 and 21,520.26 is: 32,280.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,079.78 : 132,119.12 = 21,520.26 : x
  2. Step 2: Convert to fraction form
    88,079.78/132,119.12 = 21,520.26/x
  3. Step 3: Cross multiply
    88,079.78x = 132,119.12 × 21,520.26
  4. Step 4: Simplify right side
    88,079.78x = 2,843,237,813.37
  5. Step 5: Solve for x
    x = 2,843,237,813.37/88,079.78
  6. Step 6: Final answer
    x = 32,280.26

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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.