Home / 72,234.08-99,683.24-40,400.90

Finding the Fourth Proportional to 72,234.08, 99,683.24 and 40,400.90

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Solution

The fourth proportional to 72,234.08, 99,683.24 and 40,400.90 is: 55,753.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,234.08 : 99,683.24 = 40,400.90 : x
  2. Step 2: Convert to fraction form
    72,234.08/99,683.24 = 40,400.90/x
  3. Step 3: Cross multiply
    72,234.08x = 99,683.24 × 40,400.90
  4. Step 4: Simplify right side
    72,234.08x = 4,027,292,610.92
  5. Step 5: Solve for x
    x = 4,027,292,610.92/72,234.08
  6. Step 6: Final answer
    x = 55,753.36

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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.