Home / 53,278.20-79,914.16-19,995.47

Finding the Fourth Proportional to 53,278.20, 79,914.16 and 19,995.47

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Solution

The fourth proportional to 53,278.20, 79,914.16 and 19,995.47 is: 29,992.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,278.20 : 79,914.16 = 19,995.47 : x
  2. Step 2: Convert to fraction form
    53,278.20/79,914.16 = 19,995.47/x
  3. Step 3: Cross multiply
    53,278.20x = 79,914.16 × 19,995.47
  4. Step 4: Simplify right side
    53,278.20x = 1,597,921,113.96
  5. Step 5: Solve for x
    x = 1,597,921,113.96/53,278.20
  6. Step 6: Final answer
    x = 29,992.03

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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.