Home / 72,576,076.80-108,864,115.20-54,660,172.80

Finding the Fourth Proportional to 72,576,076.80, 108,864,115.20 and 54,660,172.80

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Solution

The fourth proportional to 72,576,076.80, 108,864,115.20 and 54,660,172.80 is: 81,990,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,576,076.80 : 108,864,115.20 = 54,660,172.80 : x
  2. Step 2: Convert to fraction form
    72,576,076.80/108,864,115.20 = 54,660,172.80/x
  3. Step 3: Cross multiply
    72,576,076.80x = 108,864,115.20 × 54,660,172.80
  4. Step 4: Simplify right side
    72,576,076.80x = 5,950,531,348,551,106
  5. Step 5: Solve for x
    x = 5,950,531,348,551,106/72,576,076.80
  6. Step 6: Final answer
    x = 81,990,259.20

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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.