Home / 72,691,570.20-108,931,067.10-61,850,173.80

Finding the Fourth Proportional to 72,691,570.20, 108,931,067.10 and 61,850,173.80

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Solution

The fourth proportional to 72,691,570.20, 108,931,067.10 and 61,850,173.80 is: 92,684,824.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,691,570.20 : 108,931,067.10 = 61,850,173.80 : x
  2. Step 2: Convert to fraction form
    72,691,570.20/108,931,067.10 = 61,850,173.80/x
  3. Step 3: Cross multiply
    72,691,570.20x = 108,931,067.10 × 61,850,173.80
  4. Step 4: Simplify right side
    72,691,570.20x = 6,737,405,432,354,461
  5. Step 5: Solve for x
    x = 6,737,405,432,354,461/72,691,570.20
  6. Step 6: Final answer
    x = 92,684,824.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.