Home / 89,879.24-134,690.38-65,999.43

Finding the Fourth Proportional to 89,879.24, 134,690.38 and 65,999.43

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Solution

The fourth proportional to 89,879.24, 134,690.38 and 65,999.43 is: 98,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,879.24 : 134,690.38 = 65,999.43 : x
  2. Step 2: Convert to fraction form
    89,879.24/134,690.38 = 65,999.43/x
  3. Step 3: Cross multiply
    89,879.24x = 134,690.38 × 65,999.43
  4. Step 4: Simplify right side
    89,879.24x = 8,889,488,141.48
  5. Step 5: Solve for x
    x = 8,889,488,141.48/89,879.24
  6. Step 6: Final answer
    x = 98,904.80

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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.