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Finding the Fourth Proportional to 69,161.40, 103,742.10 and 63,037.80

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Solution

The fourth proportional to 69,161.40, 103,742.10 and 63,037.80 is: 94,556.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,161.40 : 103,742.10 = 63,037.80 : x
  2. Step 2: Convert to fraction form
    69,161.40/103,742.10 = 63,037.80/x
  3. Step 3: Cross multiply
    69,161.40x = 103,742.10 × 63,037.80
  4. Step 4: Simplify right side
    69,161.40x = 6,539,673,751.38
  5. Step 5: Solve for x
    x = 6,539,673,751.38/69,161.40
  6. Step 6: Final answer
    x = 94,556.70

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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.