Home / 55,201.30-82,761.45-21,904.90

Finding the Fourth Proportional to 55,201.30, 82,761.45 and 21,904.90

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Solution

The fourth proportional to 55,201.30, 82,761.45 and 21,904.90 is: 32,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,201.30 : 82,761.45 = 21,904.90 : x
  2. Step 2: Convert to fraction form
    55,201.30/82,761.45 = 21,904.90/x
  3. Step 3: Cross multiply
    55,201.30x = 82,761.45 × 21,904.90
  4. Step 4: Simplify right side
    55,201.30x = 1,812,881,286.11
  5. Step 5: Solve for x
    x = 1,812,881,286.11/55,201.30
  6. Step 6: Final answer
    x = 32,841.28

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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.