Home / 80,985.06-121,448.34-34,241.58

Finding the Fourth Proportional to 80,985.06, 121,448.34 and 34,241.58

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Solution

The fourth proportional to 80,985.06, 121,448.34 and 34,241.58 is: 51,350.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,985.06 : 121,448.34 = 34,241.58 : x
  2. Step 2: Convert to fraction form
    80,985.06/121,448.34 = 34,241.58/x
  3. Step 3: Cross multiply
    80,985.06x = 121,448.34 × 34,241.58
  4. Step 4: Simplify right side
    80,985.06x = 4,158,583,049.98
  5. Step 5: Solve for x
    x = 4,158,583,049.98/80,985.06
  6. Step 6: Final answer
    x = 51,350.00

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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.