Home / 72,055.38-99,216.30-65,297.04

Finding the Fourth Proportional to 72,055.38, 99,216.30 and 65,297.04

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Solution

The fourth proportional to 72,055.38, 99,216.30 and 65,297.04 is: 89,910.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,055.38 : 99,216.30 = 65,297.04 : x
  2. Step 2: Convert to fraction form
    72,055.38/99,216.30 = 65,297.04/x
  3. Step 3: Cross multiply
    72,055.38x = 99,216.30 × 65,297.04
  4. Step 4: Simplify right side
    72,055.38x = 6,478,530,709.75
  5. Step 5: Solve for x
    x = 6,478,530,709.75/72,055.38
  6. Step 6: Final answer
    x = 89,910.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.