Home / 87,000,096.52-120,030,751.67-49,319,220.72

Finding the Fourth Proportional to 87,000,096.52, 120,030,751.67 and 49,319,220.72

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Solution

The fourth proportional to 87,000,096.52, 120,030,751.67 and 49,319,220.72 is: 68,043,868.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,000,096.52 : 120,030,751.67 = 49,319,220.72 : x
  2. Step 2: Convert to fraction form
    87,000,096.52/120,030,751.67 = 49,319,220.72/x
  3. Step 3: Cross multiply
    87,000,096.52x = 120,030,751.67 × 49,319,220.72
  4. Step 4: Simplify right side
    87,000,096.52x = 5,919,823,135,463,961
  5. Step 5: Solve for x
    x = 5,919,823,135,463,961/87,000,096.52
  6. Step 6: Final answer
    x = 68,043,868.59

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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.