Home / 55,135.74-76,095.82-31,257.35

Finding the Fourth Proportional to 55,135.74, 76,095.82 and 31,257.35

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Solution

The fourth proportional to 55,135.74, 76,095.82 and 31,257.35 is: 43,139.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,135.74 : 76,095.82 = 31,257.35 : x
  2. Step 2: Convert to fraction form
    55,135.74/76,095.82 = 31,257.35/x
  3. Step 3: Cross multiply
    55,135.74x = 76,095.82 × 31,257.35
  4. Step 4: Simplify right side
    55,135.74x = 2,378,553,679.28
  5. Step 5: Solve for x
    x = 2,378,553,679.28/55,135.74
  6. Step 6: Final answer
    x = 43,139.96

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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.