Home / 55,322.45-76,345.23-31,454.11

Finding the Fourth Proportional to 55,322.45, 76,345.23 and 31,454.11

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Solution

The fourth proportional to 55,322.45, 76,345.23 and 31,454.11 is: 43,406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,322.45 : 76,345.23 = 31,454.11 : x
  2. Step 2: Convert to fraction form
    55,322.45/76,345.23 = 31,454.11/x
  3. Step 3: Cross multiply
    55,322.45x = 76,345.23 × 31,454.11
  4. Step 4: Simplify right side
    55,322.45x = 2,401,371,262.40
  5. Step 5: Solve for x
    x = 2,401,371,262.40/55,322.45
  6. Step 6: Final answer
    x = 43,406.81

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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.