Home / 87,271,729.38-120,435,768.81-48,114,897.30

Finding the Fourth Proportional to 87,271,729.38, 120,435,768.81 and 48,114,897.30

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Solution

The fourth proportional to 87,271,729.38, 120,435,768.81 and 48,114,897.30 is: 66,398,989.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,271,729.38 : 120,435,768.81 = 48,114,897.30 : x
  2. Step 2: Convert to fraction form
    87,271,729.38/120,435,768.81 = 48,114,897.30/x
  3. Step 3: Cross multiply
    87,271,729.38x = 120,435,768.81 × 48,114,897.30
  4. Step 4: Simplify right side
    87,271,729.38x = 5,794,754,647,539,693
  5. Step 5: Solve for x
    x = 5,794,754,647,539,693/87,271,729.38
  6. Step 6: Final answer
    x = 66,398,989.55

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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.