Home / 72,564.36-100,133.37-40,727.16

Finding the Fourth Proportional to 72,564.36, 100,133.37 and 40,727.16

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Solution

The fourth proportional to 72,564.36, 100,133.37 and 40,727.16 is: 56,200.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,564.36 : 100,133.37 = 40,727.16 : x
  2. Step 2: Convert to fraction form
    72,564.36/100,133.37 = 40,727.16/x
  3. Step 3: Cross multiply
    72,564.36x = 100,133.37 × 40,727.16
  4. Step 4: Simplify right side
    72,564.36x = 4,078,147,781.33
  5. Step 5: Solve for x
    x = 4,078,147,781.33/72,564.36
  6. Step 6: Final answer
    x = 56,200.42

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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.