Home / 90,217.62-124,495.18-49,928.98

Finding the Fourth Proportional to 90,217.62, 124,495.18 and 49,928.98

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Solution

The fourth proportional to 90,217.62, 124,495.18 and 49,928.98 is: 68,899.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,217.62 : 124,495.18 = 49,928.98 : x
  2. Step 2: Convert to fraction form
    90,217.62/124,495.18 = 49,928.98/x
  3. Step 3: Cross multiply
    90,217.62x = 124,495.18 × 49,928.98
  4. Step 4: Simplify right side
    90,217.62x = 6,215,917,352.32
  5. Step 5: Solve for x
    x = 6,215,917,352.32/90,217.62
  6. Step 6: Final answer
    x = 68,899.15

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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.