Home / 90,211.05-124,488.09-49,924.89

Finding the Fourth Proportional to 90,211.05, 124,488.09 and 49,924.89

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Solution

The fourth proportional to 90,211.05, 124,488.09 and 49,924.89 is: 68,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,211.05 : 124,488.09 = 49,924.89 : x
  2. Step 2: Convert to fraction form
    90,211.05/124,488.09 = 49,924.89/x
  3. Step 3: Cross multiply
    90,211.05x = 124,488.09 × 49,924.89
  4. Step 4: Simplify right side
    90,211.05x = 6,215,054,199.56
  5. Step 5: Solve for x
    x = 6,215,054,199.56/90,211.05
  6. Step 6: Final answer
    x = 68,894.60

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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.