Home / 89,981.05-124,174.84-51,759.58

Finding the Fourth Proportional to 89,981.05, 124,174.84 and 51,759.58

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Solution

The fourth proportional to 89,981.05, 124,174.84 and 51,759.58 is: 71,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.05 : 124,174.84 = 51,759.58 : x
  2. Step 2: Convert to fraction form
    89,981.05/124,174.84 = 51,759.58/x
  3. Step 3: Cross multiply
    89,981.05x = 124,174.84 × 51,759.58
  4. Step 4: Simplify right side
    89,981.05x = 6,427,236,995.73
  5. Step 5: Solve for x
    x = 6,427,236,995.73/89,981.05
  6. Step 6: Final answer
    x = 71,428.79

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1.5x scale

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.