Home / 91,923-137,820.18-46,958.28

Finding the Fourth Proportional to 91,923, 137,820.18 and 46,958.28

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Solution

The fourth proportional to 91,923, 137,820.18 and 46,958.28 is: 70,404.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,923 : 137,820.18 = 46,958.28 : x
  2. Step 2: Convert to fraction form
    91,923/137,820.18 = 46,958.28/x
  3. Step 3: Cross multiply
    91,923x = 137,820.18 × 46,958.28
  4. Step 4: Simplify right side
    91,923x = 6,471,798,719.49
  5. Step 5: Solve for x
    x = 6,471,798,719.49/91,923
  6. Step 6: Final answer
    x = 70,404.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.