Home / 72,579,137.20-109,030,907.40-60,635,201.20

Finding the Fourth Proportional to 72,579,137.20, 109,030,907.40 and 60,635,201.20

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Solution

The fourth proportional to 72,579,137.20, 109,030,907.40 and 60,635,201.20 is: 91,088,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,579,137.20 : 109,030,907.40 = 60,635,201.20 : x
  2. Step 2: Convert to fraction form
    72,579,137.20/109,030,907.40 = 60,635,201.20/x
  3. Step 3: Cross multiply
    72,579,137.20x = 109,030,907.40 × 60,635,201.20
  4. Step 4: Simplify right side
    72,579,137.20x = 6,611,111,007,217,570
  5. Step 5: Solve for x
    x = 6,611,111,007,217,570/72,579,137.20
  6. Step 6: Final answer
    x = 91,088,310.80

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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.