Home / 53,259.99-79,891.19-13,818.66

Finding the Fourth Proportional to 53,259.99, 79,891.19 and 13,818.66

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Solution

The fourth proportional to 53,259.99, 79,891.19 and 13,818.66 is: 20,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,259.99 : 79,891.19 = 13,818.66 : x
  2. Step 2: Convert to fraction form
    53,259.99/79,891.19 = 13,818.66/x
  3. Step 3: Cross multiply
    53,259.99x = 79,891.19 × 13,818.66
  4. Step 4: Simplify right side
    53,259.99x = 1,103,989,191.61
  5. Step 5: Solve for x
    x = 1,103,989,191.61/53,259.99
  6. Step 6: Final answer
    x = 20,728.30

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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.