Home / 72,401.85-99,921.60-40,576.14

Finding the Fourth Proportional to 72,401.85, 99,921.60 and 40,576.14

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Solution

The fourth proportional to 72,401.85, 99,921.60 and 40,576.14 is: 55,999.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,401.85 : 99,921.60 = 40,576.14 : x
  2. Step 2: Convert to fraction form
    72,401.85/99,921.60 = 40,576.14/x
  3. Step 3: Cross multiply
    72,401.85x = 99,921.60 × 40,576.14
  4. Step 4: Simplify right side
    72,401.85x = 4,054,432,830.62
  5. Step 5: Solve for x
    x = 4,054,432,830.62/72,401.85
  6. Step 6: Final answer
    x = 55,999.02

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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.