Home / 55,486.35-76,565.88-31,612.41

Finding the Fourth Proportional to 55,486.35, 76,565.88 and 31,612.41

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Solution

The fourth proportional to 55,486.35, 76,565.88 and 31,612.41 is: 43,622.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,486.35 : 76,565.88 = 31,612.41 : x
  2. Step 2: Convert to fraction form
    55,486.35/76,565.88 = 31,612.41/x
  3. Step 3: Cross multiply
    55,486.35x = 76,565.88 × 31,612.41
  4. Step 4: Simplify right side
    55,486.35x = 2,420,431,990.57
  5. Step 5: Solve for x
    x = 2,420,431,990.57/55,486.35
  6. Step 6: Final answer
    x = 43,622.12

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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.