Home / 45,054.36-67,581-13,889.61

Finding the Fourth Proportional to 45,054.36, 67,581 and 13,889.61

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Solution

The fourth proportional to 45,054.36, 67,581 and 13,889.61 is: 20,834.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,054.36 : 67,581 = 13,889.61 : x
  2. Step 2: Convert to fraction form
    45,054.36/67,581 = 13,889.61/x
  3. Step 3: Cross multiply
    45,054.36x = 67,581 × 13,889.61
  4. Step 4: Simplify right side
    45,054.36x = 938,673,733.41
  5. Step 5: Solve for x
    x = 938,673,733.41/45,054.36
  6. Step 6: Final answer
    x = 20,834.25

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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.