Home / 80,698.02-121,054.05-21,534

Finding the Fourth Proportional to 80,698.02, 121,054.05 and 21,534

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Solution

The fourth proportional to 80,698.02, 121,054.05 and 21,534 is: 32,302.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,698.02 : 121,054.05 = 21,534 : x
  2. Step 2: Convert to fraction form
    80,698.02/121,054.05 = 21,534/x
  3. Step 3: Cross multiply
    80,698.02x = 121,054.05 × 21,534
  4. Step 4: Simplify right side
    80,698.02x = 2,606,777,912.70
  5. Step 5: Solve for x
    x = 2,606,777,912.70/80,698.02
  6. Step 6: Final answer
    x = 32,302.87

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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.