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Finding the Fourth Proportional to 59,414.40, 89,121.60 and 39,628.80

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Solution

The fourth proportional to 59,414.40, 89,121.60 and 39,628.80 is: 59,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,414.40 : 89,121.60 = 39,628.80 : x
  2. Step 2: Convert to fraction form
    59,414.40/89,121.60 = 39,628.80/x
  3. Step 3: Cross multiply
    59,414.40x = 89,121.60 × 39,628.80
  4. Step 4: Simplify right side
    59,414.40x = 3,531,782,062.08
  5. Step 5: Solve for x
    x = 3,531,782,062.08/59,414.40
  6. Step 6: Final answer
    x = 59,443.20

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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.