Home / 72,174.22-99,601.17-40,344.86

Finding the Fourth Proportional to 72,174.22, 99,601.17 and 40,344.86

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Solution

The fourth proportional to 72,174.22, 99,601.17 and 40,344.86 is: 55,676.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,174.22 : 99,601.17 = 40,344.86 : x
  2. Step 2: Convert to fraction form
    72,174.22/99,601.17 = 40,344.86/x
  3. Step 3: Cross multiply
    72,174.22x = 99,601.17 × 40,344.86
  4. Step 4: Simplify right side
    72,174.22x = 4,018,395,259.49
  5. Step 5: Solve for x
    x = 4,018,395,259.49/72,174.22
  6. Step 6: Final answer
    x = 55,676.32

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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.