Home / 56,218.24-77,582.78-30,726.02

Finding the Fourth Proportional to 56,218.24, 77,582.78 and 30,726.02

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Solution

The fourth proportional to 56,218.24, 77,582.78 and 30,726.02 is: 42,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,218.24 : 77,582.78 = 30,726.02 : x
  2. Step 2: Convert to fraction form
    56,218.24/77,582.78 = 30,726.02/x
  3. Step 3: Cross multiply
    56,218.24x = 77,582.78 × 30,726.02
  4. Step 4: Simplify right side
    56,218.24x = 2,383,810,049.94
  5. Step 5: Solve for x
    x = 2,383,810,049.94/56,218.24
  6. Step 6: Final answer
    x = 42,402.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.