Home / 90,172.28-124,436.58-49,883

Finding the Fourth Proportional to 90,172.28, 124,436.58 and 49,883

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Solution

The fourth proportional to 90,172.28, 124,436.58 and 49,883 is: 68,837.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,172.28 : 124,436.58 = 49,883 : x
  2. Step 2: Convert to fraction form
    90,172.28/124,436.58 = 49,883/x
  3. Step 3: Cross multiply
    90,172.28x = 124,436.58 × 49,883
  4. Step 4: Simplify right side
    90,172.28x = 6,207,269,920.14
  5. Step 5: Solve for x
    x = 6,207,269,920.14/90,172.28
  6. Step 6: Final answer
    x = 68,837.89

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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.