Home / 90,049.11-124,261.59-49,762.50

Finding the Fourth Proportional to 90,049.11, 124,261.59 and 49,762.50

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Solution

The fourth proportional to 90,049.11, 124,261.59 and 49,762.50 is: 68,668.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,049.11 : 124,261.59 = 49,762.50 : x
  2. Step 2: Convert to fraction form
    90,049.11/124,261.59 = 49,762.50/x
  3. Step 3: Cross multiply
    90,049.11x = 124,261.59 × 49,762.50
  4. Step 4: Simplify right side
    90,049.11x = 6,183,567,372.38
  5. Step 5: Solve for x
    x = 6,183,567,372.38/90,049.11
  6. Step 6: Final answer
    x = 68,668.83

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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.