Home / 55,110.61-76,058.58-31,234.72

Finding the Fourth Proportional to 55,110.61, 76,058.58 and 31,234.72

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Solution

The fourth proportional to 55,110.61, 76,058.58 and 31,234.72 is: 43,107.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,110.61 : 76,058.58 = 31,234.72 : x
  2. Step 2: Convert to fraction form
    55,110.61/76,058.58 = 31,234.72/x
  3. Step 3: Cross multiply
    55,110.61x = 76,058.58 × 31,234.72
  4. Step 4: Simplify right side
    55,110.61x = 2,375,668,281.81
  5. Step 5: Solve for x
    x = 2,375,668,281.81/55,110.61
  6. Step 6: Final answer
    x = 43,107.28

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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.