Home / 90,217.40-124,494.57-49,928.70

Finding the Fourth Proportional to 90,217.40, 124,494.57 and 49,928.70

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Solution

The fourth proportional to 90,217.40, 124,494.57 and 49,928.70 is: 68,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,217.40 : 124,494.57 = 49,928.70 : x
  2. Step 2: Convert to fraction form
    90,217.40/124,494.57 = 49,928.70/x
  3. Step 3: Cross multiply
    90,217.40x = 124,494.57 × 49,928.70
  4. Step 4: Simplify right side
    90,217.40x = 6,215,852,504.01
  5. Step 5: Solve for x
    x = 6,215,852,504.01/90,217.40
  6. Step 6: Final answer
    x = 68,898.60

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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.