Home / 53,657.91-74,051.26-30,997.85

Finding the Fourth Proportional to 53,657.91, 74,051.26 and 30,997.85

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Solution

The fourth proportional to 53,657.91, 74,051.26 and 30,997.85 is: 42,778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,657.91 : 74,051.26 = 30,997.85 : x
  2. Step 2: Convert to fraction form
    53,657.91/74,051.26 = 30,997.85/x
  3. Step 3: Cross multiply
    53,657.91x = 74,051.26 × 30,997.85
  4. Step 4: Simplify right side
    53,657.91x = 2,295,429,849.79
  5. Step 5: Solve for x
    x = 2,295,429,849.79/53,657.91
  6. Step 6: Final answer
    x = 42,778.97

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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.