Home / 81,333.02-112,138.35-62,236.46

Finding the Fourth Proportional to 81,333.02, 112,138.35 and 62,236.46

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Solution

The fourth proportional to 81,333.02, 112,138.35 and 62,236.46 is: 85,808.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,333.02 : 112,138.35 = 62,236.46 : x
  2. Step 2: Convert to fraction form
    81,333.02/112,138.35 = 62,236.46/x
  3. Step 3: Cross multiply
    81,333.02x = 112,138.35 × 62,236.46
  4. Step 4: Simplify right side
    81,333.02x = 6,979,093,934.24
  5. Step 5: Solve for x
    x = 6,979,093,934.24/81,333.02
  6. Step 6: Final answer
    x = 85,808.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.