Home / 72,223.26-99,668.44-40,392.16

Finding the Fourth Proportional to 72,223.26, 99,668.44 and 40,392.16

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Solution

The fourth proportional to 72,223.26, 99,668.44 and 40,392.16 is: 55,741.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,223.26 : 99,668.44 = 40,392.16 : x
  2. Step 2: Convert to fraction form
    72,223.26/99,668.44 = 40,392.16/x
  3. Step 3: Cross multiply
    72,223.26x = 99,668.44 × 40,392.16
  4. Step 4: Simplify right side
    72,223.26x = 4,025,823,575.43
  5. Step 5: Solve for x
    x = 4,025,823,575.43/72,223.26
  6. Step 6: Final answer
    x = 55,741.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.