Home / 81,108.02-121,695.75-33,733.49

Finding the Fourth Proportional to 81,108.02, 121,695.75 and 33,733.49

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Solution

The fourth proportional to 81,108.02, 121,695.75 and 33,733.49 is: 50,614.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,108.02 : 121,695.75 = 33,733.49 : x
  2. Step 2: Convert to fraction form
    81,108.02/121,695.75 = 33,733.49/x
  3. Step 3: Cross multiply
    81,108.02x = 121,695.75 × 33,733.49
  4. Step 4: Simplify right side
    81,108.02x = 4,105,222,365.67
  5. Step 5: Solve for x
    x = 4,105,222,365.67/81,108.02
  6. Step 6: Final answer
    x = 50,614.26

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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.