Home / 67,755.51-101,632.33-21,008.38

Finding the Fourth Proportional to 67,755.51, 101,632.33 and 21,008.38

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Solution

The fourth proportional to 67,755.51, 101,632.33 and 21,008.38 is: 31,512.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,755.51 : 101,632.33 = 21,008.38 : x
  2. Step 2: Convert to fraction form
    67,755.51/101,632.33 = 21,008.38/x
  3. Step 3: Cross multiply
    67,755.51x = 101,632.33 × 21,008.38
  4. Step 4: Simplify right side
    67,755.51x = 2,135,130,608.93
  5. Step 5: Solve for x
    x = 2,135,130,608.93/67,755.51
  6. Step 6: Final answer
    x = 31,512.28

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1.5x scale

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.