Home / 90,106.97-124,342.29-49,817.57

Finding the Fourth Proportional to 90,106.97, 124,342.29 and 49,817.57

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Solution

The fourth proportional to 90,106.97, 124,342.29 and 49,817.57 is: 68,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,106.97 : 124,342.29 = 49,817.57 : x
  2. Step 2: Convert to fraction form
    90,106.97/124,342.29 = 49,817.57/x
  3. Step 3: Cross multiply
    90,106.97x = 124,342.29 × 49,817.57
  4. Step 4: Simplify right side
    90,106.97x = 6,194,430,114.32
  5. Step 5: Solve for x
    x = 6,194,430,114.32/90,106.97
  6. Step 6: Final answer
    x = 68,745.30

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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.