Home / 66,721.22-92,076.45-36,509.20

Finding the Fourth Proportional to 66,721.22, 92,076.45 and 36,509.20

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Solution

The fourth proportional to 66,721.22, 92,076.45 and 36,509.20 is: 50,383.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,721.22 : 92,076.45 = 36,509.20 : x
  2. Step 2: Convert to fraction form
    66,721.22/92,076.45 = 36,509.20/x
  3. Step 3: Cross multiply
    66,721.22x = 92,076.45 × 36,509.20
  4. Step 4: Simplify right side
    66,721.22x = 3,361,637,161.24
  5. Step 5: Solve for x
    x = 3,361,637,161.24/66,721.22
  6. Step 6: Final answer
    x = 50,383.33

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1.5x scale

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.