Home / 60,619.80-90,939.30-18,490.23

Finding the Fourth Proportional to 60,619.80, 90,939.30 and 18,490.23

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Solution

The fourth proportional to 60,619.80, 90,939.30 and 18,490.23 is: 27,738.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,619.80 : 90,939.30 = 18,490.23 : x
  2. Step 2: Convert to fraction form
    60,619.80/90,939.30 = 18,490.23/x
  3. Step 3: Cross multiply
    60,619.80x = 90,939.30 × 18,490.23
  4. Step 4: Simplify right side
    60,619.80x = 1,681,488,573.04
  5. Step 5: Solve for x
    x = 1,681,488,573.04/60,619.80
  6. Step 6: Final answer
    x = 27,738.27

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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.