Home / 72,013.08-99,383.04-40,188.24

Finding the Fourth Proportional to 72,013.08, 99,383.04 and 40,188.24

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Solution

The fourth proportional to 72,013.08, 99,383.04 and 40,188.24 is: 55,462.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,013.08 : 99,383.04 = 40,188.24 : x
  2. Step 2: Convert to fraction form
    72,013.08/99,383.04 = 40,188.24/x
  3. Step 3: Cross multiply
    72,013.08x = 99,383.04 × 40,188.24
  4. Step 4: Simplify right side
    72,013.08x = 3,994,029,463.45
  5. Step 5: Solve for x
    x = 3,994,029,463.45/72,013.08
  6. Step 6: Final answer
    x = 55,462.56

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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.