Home / 45,111.69-67,643.06-13,517.37

Finding the Fourth Proportional to 45,111.69, 67,643.06 and 13,517.37

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Solution

The fourth proportional to 45,111.69, 67,643.06 and 13,517.37 is: 20,268.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,111.69 : 67,643.06 = 13,517.37 : x
  2. Step 2: Convert to fraction form
    45,111.69/67,643.06 = 13,517.37/x
  3. Step 3: Cross multiply
    45,111.69x = 67,643.06 × 13,517.37
  4. Step 4: Simplify right side
    45,111.69x = 914,356,202.37
  5. Step 5: Solve for x
    x = 914,356,202.37/45,111.69
  6. Step 6: Final answer
    x = 20,268.72

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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.