Home / 80,734.02-121,103.30-21,569.74

Finding the Fourth Proportional to 80,734.02, 121,103.30 and 21,569.74

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Solution

The fourth proportional to 80,734.02, 121,103.30 and 21,569.74 is: 32,355.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,734.02 : 121,103.30 = 21,569.74 : x
  2. Step 2: Convert to fraction form
    80,734.02/121,103.30 = 21,569.74/x
  3. Step 3: Cross multiply
    80,734.02x = 121,103.30 × 21,569.74
  4. Step 4: Simplify right side
    80,734.02x = 2,612,167,126.51
  5. Step 5: Solve for x
    x = 2,612,167,126.51/80,734.02
  6. Step 6: Final answer
    x = 32,355.22

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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.