Home / 90,427.79-124,787.99-50,141.43

Finding the Fourth Proportional to 90,427.79, 124,787.99 and 50,141.43

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Solution

The fourth proportional to 90,427.79, 124,787.99 and 50,141.43 is: 69,193.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,427.79 : 124,787.99 = 50,141.43 : x
  2. Step 2: Convert to fraction form
    90,427.79/124,787.99 = 50,141.43/x
  3. Step 3: Cross multiply
    90,427.79x = 124,787.99 × 50,141.43
  4. Step 4: Simplify right side
    90,427.79x = 6,257,048,390.78
  5. Step 5: Solve for x
    x = 6,257,048,390.78/90,427.79
  6. Step 6: Final answer
    x = 69,193.86

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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.