Home / 81,165.47-121,682.63-33,816.22

Finding the Fourth Proportional to 81,165.47, 121,682.63 and 33,816.22

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Solution

The fourth proportional to 81,165.47, 121,682.63 and 33,816.22 is: 50,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,165.47 : 121,682.63 = 33,816.22 : x
  2. Step 2: Convert to fraction form
    81,165.47/121,682.63 = 33,816.22/x
  3. Step 3: Cross multiply
    81,165.47x = 121,682.63 × 33,816.22
  4. Step 4: Simplify right side
    81,165.47x = 4,114,846,366.59
  5. Step 5: Solve for x
    x = 4,114,846,366.59/81,165.47
  6. Step 6: Final answer
    x = 50,697.01

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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.