Home / 45,601.08-68,372.01-18,939.75

Finding the Fourth Proportional to 45,601.08, 68,372.01 and 18,939.75

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Solution

The fourth proportional to 45,601.08, 68,372.01 and 18,939.75 is: 28,397.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,601.08 : 68,372.01 = 18,939.75 : x
  2. Step 2: Convert to fraction form
    45,601.08/68,372.01 = 18,939.75/x
  3. Step 3: Cross multiply
    45,601.08x = 68,372.01 × 18,939.75
  4. Step 4: Simplify right side
    45,601.08x = 1,294,948,776.40
  5. Step 5: Solve for x
    x = 1,294,948,776.40/45,601.08
  6. Step 6: Final answer
    x = 28,397.33

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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.