Home / 81,770.11-122,607.78-37,373.10

Finding the Fourth Proportional to 81,770.11, 122,607.78 and 37,373.10

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Solution

The fourth proportional to 81,770.11, 122,607.78 and 37,373.10 is: 56,037.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,770.11 : 122,607.78 = 37,373.10 : x
  2. Step 2: Convert to fraction form
    81,770.11/122,607.78 = 37,373.10/x
  3. Step 3: Cross multiply
    81,770.11x = 122,607.78 × 37,373.10
  4. Step 4: Simplify right side
    81,770.11x = 4,582,232,222.79
  5. Step 5: Solve for x
    x = 4,582,232,222.79/81,770.11
  6. Step 6: Final answer
    x = 56,037.99

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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.