Home / 55,662.96-76,816.85-31,789.20

Finding the Fourth Proportional to 55,662.96, 76,816.85 and 31,789.20

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Solution

The fourth proportional to 55,662.96, 76,816.85 and 31,789.20 is: 43,870.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,662.96 : 76,816.85 = 31,789.20 : x
  2. Step 2: Convert to fraction form
    55,662.96/76,816.85 = 31,789.20/x
  3. Step 3: Cross multiply
    55,662.96x = 76,816.85 × 31,789.20
  4. Step 4: Simplify right side
    55,662.96x = 2,441,946,049.07
  5. Step 5: Solve for x
    x = 2,441,946,049.07/55,662.96
  6. Step 6: Final answer
    x = 43,870.22

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1.5x scale

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.