Home / 53,229.15-79,830.09-15,780.46

Finding the Fourth Proportional to 53,229.15, 79,830.09 and 15,780.46

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Solution

The fourth proportional to 53,229.15, 79,830.09 and 15,780.46 is: 23,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,229.15 : 79,830.09 = 15,780.46 : x
  2. Step 2: Convert to fraction form
    53,229.15/79,830.09 = 15,780.46/x
  3. Step 3: Cross multiply
    53,229.15x = 79,830.09 × 15,780.46
  4. Step 4: Simplify right side
    53,229.15x = 1,259,755,542.04
  5. Step 5: Solve for x
    x = 1,259,755,542.04/53,229.15
  6. Step 6: Final answer
    x = 23,666.65

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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.