Home / 72,279.22-99,726.36-41,644.81

Finding the Fourth Proportional to 72,279.22, 99,726.36 and 41,644.81

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Solution

The fourth proportional to 72,279.22, 99,726.36 and 41,644.81 is: 57,458.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,279.22 : 99,726.36 = 41,644.81 : x
  2. Step 2: Convert to fraction form
    72,279.22/99,726.36 = 41,644.81/x
  3. Step 3: Cross multiply
    72,279.22x = 99,726.36 × 41,644.81
  4. Step 4: Simplify right side
    72,279.22x = 4,153,085,314.19
  5. Step 5: Solve for x
    x = 4,153,085,314.19/72,279.22
  6. Step 6: Final answer
    x = 57,458.91

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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.