Home / 40,012-54,816.24-38,516.80

Finding the Fourth Proportional to 40,012, 54,816.24 and 38,516.80

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Solution

The fourth proportional to 40,012, 54,816.24 and 38,516.80 is: 52,767.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,012 : 54,816.24 = 38,516.80 : x
  2. Step 2: Convert to fraction form
    40,012/54,816.24 = 38,516.80/x
  3. Step 3: Cross multiply
    40,012x = 54,816.24 × 38,516.80
  4. Step 4: Simplify right side
    40,012x = 2,111,346,152.83
  5. Step 5: Solve for x
    x = 2,111,346,152.83/40,012
  6. Step 6: Final answer
    x = 52,767.82

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.