Home / 72,401.11-99,917.49-40,580.26

Finding the Fourth Proportional to 72,401.11, 99,917.49 and 40,580.26

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Solution

The fourth proportional to 72,401.11, 99,917.49 and 40,580.26 is: 56,002.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,401.11 : 99,917.49 = 40,580.26 : x
  2. Step 2: Convert to fraction form
    72,401.11/99,917.49 = 40,580.26/x
  3. Step 3: Cross multiply
    72,401.11x = 99,917.49 × 40,580.26
  4. Step 4: Simplify right side
    72,401.11x = 4,054,677,722.75
  5. Step 5: Solve for x
    x = 4,054,677,722.75/72,401.11
  6. Step 6: Final answer
    x = 56,002.98

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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.