Home / 55,727.76-76,904.52-31,855.20

Finding the Fourth Proportional to 55,727.76, 76,904.52 and 31,855.20

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Solution

The fourth proportional to 55,727.76, 76,904.52 and 31,855.20 is: 43,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,727.76 : 76,904.52 = 31,855.20 : x
  2. Step 2: Convert to fraction form
    55,727.76/76,904.52 = 31,855.20/x
  3. Step 3: Cross multiply
    55,727.76x = 76,904.52 × 31,855.20
  4. Step 4: Simplify right side
    55,727.76x = 2,449,808,865.50
  5. Step 5: Solve for x
    x = 2,449,808,865.50/55,727.76
  6. Step 6: Final answer
    x = 43,960.30

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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.