Home / 53,186.40-79,781.76-28,249.92

Finding the Fourth Proportional to 53,186.40, 79,781.76 and 28,249.92

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Solution

The fourth proportional to 53,186.40, 79,781.76 and 28,249.92 is: 42,376.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,186.40 : 79,781.76 = 28,249.92 : x
  2. Step 2: Convert to fraction form
    53,186.40/79,781.76 = 28,249.92/x
  3. Step 3: Cross multiply
    53,186.40x = 79,781.76 × 28,249.92
  4. Step 4: Simplify right side
    53,186.40x = 2,253,828,337.46
  5. Step 5: Solve for x
    x = 2,253,828,337.46/53,186.40
  6. Step 6: Final answer
    x = 42,376.03

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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.