Home / 69,235.20-103,778.64-49,453.74

Finding the Fourth Proportional to 69,235.20, 103,778.64 and 49,453.74

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Solution

The fourth proportional to 69,235.20, 103,778.64 and 49,453.74 is: 74,127.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,235.20 : 103,778.64 = 49,453.74 : x
  2. Step 2: Convert to fraction form
    69,235.20/103,778.64 = 49,453.74/x
  3. Step 3: Cross multiply
    69,235.20x = 103,778.64 × 49,453.74
  4. Step 4: Simplify right side
    69,235.20x = 5,132,241,880.11
  5. Step 5: Solve for x
    x = 5,132,241,880.11/69,235.20
  6. Step 6: Final answer
    x = 74,127.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.