Home / 55,290.94-76,303.13-31,418.62

Finding the Fourth Proportional to 55,290.94, 76,303.13 and 31,418.62

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Solution

The fourth proportional to 55,290.94, 76,303.13 and 31,418.62 is: 43,358.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,290.94 : 76,303.13 = 31,418.62 : x
  2. Step 2: Convert to fraction form
    55,290.94/76,303.13 = 31,418.62/x
  3. Step 3: Cross multiply
    55,290.94x = 76,303.13 × 31,418.62
  4. Step 4: Simplify right side
    55,290.94x = 2,397,339,046.28
  5. Step 5: Solve for x
    x = 2,397,339,046.28/55,290.94
  6. Step 6: Final answer
    x = 43,358.62

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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.