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Finding the Fourth Proportional to 48,108.80, 72,114.60 and 21,832.40

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Solution

The fourth proportional to 48,108.80, 72,114.60 and 21,832.40 is: 32,726.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,108.80 : 72,114.60 = 21,832.40 : x
  2. Step 2: Convert to fraction form
    48,108.80/72,114.60 = 21,832.40/x
  3. Step 3: Cross multiply
    48,108.80x = 72,114.60 × 21,832.40
  4. Step 4: Simplify right side
    48,108.80x = 1,574,434,793.04
  5. Step 5: Solve for x
    x = 1,574,434,793.04/48,108.80
  6. Step 6: Final answer
    x = 32,726.54

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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.