Home / 81,905.45-122,858.10-22,741.10

Finding the Fourth Proportional to 81,905.45, 122,858.10 and 22,741.10

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Solution

The fourth proportional to 81,905.45, 122,858.10 and 22,741.10 is: 34,111.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,905.45 : 122,858.10 = 22,741.10 : x
  2. Step 2: Convert to fraction form
    81,905.45/122,858.10 = 22,741.10/x
  3. Step 3: Cross multiply
    81,905.45x = 122,858.10 × 22,741.10
  4. Step 4: Simplify right side
    81,905.45x = 2,793,928,337.91
  5. Step 5: Solve for x
    x = 2,793,928,337.91/81,905.45
  6. Step 6: Final answer
    x = 34,111.63

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1.5x scale

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.