Home / 90,175.08-124,438.89-49,886.49

Finding the Fourth Proportional to 90,175.08, 124,438.89 and 49,886.49

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Solution

The fourth proportional to 90,175.08, 124,438.89 and 49,886.49 is: 68,841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,175.08 : 124,438.89 = 49,886.49 : x
  2. Step 2: Convert to fraction form
    90,175.08/124,438.89 = 49,886.49/x
  3. Step 3: Cross multiply
    90,175.08x = 124,438.89 × 49,886.49
  4. Step 4: Simplify right side
    90,175.08x = 6,207,819,441.60
  5. Step 5: Solve for x
    x = 6,207,819,441.60/90,175.08
  6. Step 6: Final answer
    x = 68,841.85

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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.