Home / 81,734.02-122,608.94-31,818.18

Finding the Fourth Proportional to 81,734.02, 122,608.94 and 31,818.18

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Solution

The fourth proportional to 81,734.02, 122,608.94 and 31,818.18 is: 47,730.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,734.02 : 122,608.94 = 31,818.18 : x
  2. Step 2: Convert to fraction form
    81,734.02/122,608.94 = 31,818.18/x
  3. Step 3: Cross multiply
    81,734.02x = 122,608.94 × 31,818.18
  4. Step 4: Simplify right side
    81,734.02x = 3,901,193,322.53
  5. Step 5: Solve for x
    x = 3,901,193,322.53/81,734.02
  6. Step 6: Final answer
    x = 47,730.35

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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.