Home / 89,360.20-134,040.30-54,310.60

Finding the Fourth Proportional to 89,360.20, 134,040.30 and 54,310.60

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Solution

The fourth proportional to 89,360.20, 134,040.30 and 54,310.60 is: 81,465.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,360.20 : 134,040.30 = 54,310.60 : x
  2. Step 2: Convert to fraction form
    89,360.20/134,040.30 = 54,310.60/x
  3. Step 3: Cross multiply
    89,360.20x = 134,040.30 × 54,310.60
  4. Step 4: Simplify right side
    89,360.20x = 7,279,809,117.18
  5. Step 5: Solve for x
    x = 7,279,809,117.18/89,360.20
  6. Step 6: Final answer
    x = 81,465.90

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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.