Home / 55,318.42-76,338.59-31,117.55

Finding the Fourth Proportional to 55,318.42, 76,338.59 and 31,117.55

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Solution

The fourth proportional to 55,318.42, 76,338.59 and 31,117.55 is: 42,941.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,318.42 : 76,338.59 = 31,117.55 : x
  2. Step 2: Convert to fraction form
    55,318.42/76,338.59 = 31,117.55/x
  3. Step 3: Cross multiply
    55,318.42x = 76,338.59 × 31,117.55
  4. Step 4: Simplify right side
    55,318.42x = 2,375,469,958.41
  5. Step 5: Solve for x
    x = 2,375,469,958.41/55,318.42
  6. Step 6: Final answer
    x = 42,941.76

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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.