Home / 55,322.86-76,345.20-31,449.54

Finding the Fourth Proportional to 55,322.86, 76,345.20 and 31,449.54

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Solution

The fourth proportional to 55,322.86, 76,345.20 and 31,449.54 is: 43,400.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,322.86 : 76,345.20 = 31,449.54 : x
  2. Step 2: Convert to fraction form
    55,322.86/76,345.20 = 31,449.54/x
  3. Step 3: Cross multiply
    55,322.86x = 76,345.20 × 31,449.54
  4. Step 4: Simplify right side
    55,322.86x = 2,401,021,421.21
  5. Step 5: Solve for x
    x = 2,401,021,421.21/55,322.86
  6. Step 6: Final answer
    x = 43,400.17

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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.