Home / 89,622.40-134,433.60-61,628.80

Finding the Fourth Proportional to 89,622.40, 134,433.60 and 61,628.80

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Solution

The fourth proportional to 89,622.40, 134,433.60 and 61,628.80 is: 92,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,622.40 : 134,433.60 = 61,628.80 : x
  2. Step 2: Convert to fraction form
    89,622.40/134,433.60 = 61,628.80/x
  3. Step 3: Cross multiply
    89,622.40x = 134,433.60 × 61,628.80
  4. Step 4: Simplify right side
    89,622.40x = 8,284,981,447.68
  5. Step 5: Solve for x
    x = 8,284,981,447.68/89,622.40
  6. Step 6: Final answer
    x = 92,443.20

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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.