Home / 90,209.50-124,487.15-49,920.84

Finding the Fourth Proportional to 90,209.50, 124,487.15 and 49,920.84

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Solution

The fourth proportional to 90,209.50, 124,487.15 and 49,920.84 is: 68,889.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,209.50 : 124,487.15 = 49,920.84 : x
  2. Step 2: Convert to fraction form
    90,209.50/124,487.15 = 49,920.84/x
  3. Step 3: Cross multiply
    90,209.50x = 124,487.15 × 49,920.84
  4. Step 4: Simplify right side
    90,209.50x = 6,214,502,847.60
  5. Step 5: Solve for x
    x = 6,214,502,847.60/90,209.50
  6. Step 6: Final answer
    x = 68,889.67

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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.