Home / 45,120.36-67,677.66-13,953

Finding the Fourth Proportional to 45,120.36, 67,677.66 and 13,953

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Solution

The fourth proportional to 45,120.36, 67,677.66 and 13,953 is: 20,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,120.36 : 67,677.66 = 13,953 : x
  2. Step 2: Convert to fraction form
    45,120.36/67,677.66 = 13,953/x
  3. Step 3: Cross multiply
    45,120.36x = 67,677.66 × 13,953
  4. Step 4: Simplify right side
    45,120.36x = 944,306,389.98
  5. Step 5: Solve for x
    x = 944,306,389.98/45,120.36
  6. Step 6: Final answer
    x = 20,928.61

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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.