Home / 90,125.53-124,382.57-51,886.43

Finding the Fourth Proportional to 90,125.53, 124,382.57 and 51,886.43

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Solution

The fourth proportional to 90,125.53, 124,382.57 and 51,886.43 is: 71,608.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,125.53 : 124,382.57 = 51,886.43 : x
  2. Step 2: Convert to fraction form
    90,125.53/124,382.57 = 51,886.43/x
  3. Step 3: Cross multiply
    90,125.53x = 124,382.57 × 51,886.43
  4. Step 4: Simplify right side
    90,125.53x = 6,453,767,511.53
  5. Step 5: Solve for x
    x = 6,453,767,511.53/90,125.53
  6. Step 6: Final answer
    x = 71,608.65

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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.