Home / 53,213.20-79,819.80-18,192.40

Finding the Fourth Proportional to 53,213.20, 79,819.80 and 18,192.40

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Solution

The fourth proportional to 53,213.20, 79,819.80 and 18,192.40 is: 27,288.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,213.20 : 79,819.80 = 18,192.40 : x
  2. Step 2: Convert to fraction form
    53,213.20/79,819.80 = 18,192.40/x
  3. Step 3: Cross multiply
    53,213.20x = 79,819.80 × 18,192.40
  4. Step 4: Simplify right side
    53,213.20x = 1,452,113,729.52
  5. Step 5: Solve for x
    x = 1,452,113,729.52/53,213.20
  6. Step 6: Final answer
    x = 27,288.60

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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.