Home / 53,423.11-80,105.07-21,855.32

Finding the Fourth Proportional to 53,423.11, 80,105.07 and 21,855.32

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Solution

The fourth proportional to 53,423.11, 80,105.07 and 21,855.32 is: 32,770.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,423.11 : 80,105.07 = 21,855.32 : x
  2. Step 2: Convert to fraction form
    53,423.11/80,105.07 = 21,855.32/x
  3. Step 3: Cross multiply
    53,423.11x = 80,105.07 × 21,855.32
  4. Step 4: Simplify right side
    53,423.11x = 1,750,721,938.47
  5. Step 5: Solve for x
    x = 1,750,721,938.47/53,423.11
  6. Step 6: Final answer
    x = 32,770.87

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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.