Home / 45,076.50-67,618.40-13,911.75

Finding the Fourth Proportional to 45,076.50, 67,618.40 and 13,911.75

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Solution

The fourth proportional to 45,076.50, 67,618.40 and 13,911.75 is: 20,868.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,076.50 : 67,618.40 = 13,911.75 : x
  2. Step 2: Convert to fraction form
    45,076.50/67,618.40 = 13,911.75/x
  3. Step 3: Cross multiply
    45,076.50x = 67,618.40 × 13,911.75
  4. Step 4: Simplify right side
    45,076.50x = 940,690,206.64
  5. Step 5: Solve for x
    x = 940,690,206.64/45,076.50
  6. Step 6: Final answer
    x = 20,868.75

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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.