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Finding the Fourth Proportional to 53,881.80, 80,822.70 and 35,219.40

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Solution

The fourth proportional to 53,881.80, 80,822.70 and 35,219.40 is: 52,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,881.80 : 80,822.70 = 35,219.40 : x
  2. Step 2: Convert to fraction form
    53,881.80/80,822.70 = 35,219.40/x
  3. Step 3: Cross multiply
    53,881.80x = 80,822.70 × 35,219.40
  4. Step 4: Simplify right side
    53,881.80x = 2,846,527,000.38
  5. Step 5: Solve for x
    x = 2,846,527,000.38/53,881.80
  6. Step 6: Final answer
    x = 52,829.10

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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.