Home / 87,179,982.32-120,308,382.12-48,021,759.05

Finding the Fourth Proportional to 87,179,982.32, 120,308,382.12 and 48,021,759.05

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Solution

The fourth proportional to 87,179,982.32, 120,308,382.12 and 48,021,759.05 is: 66,270,031.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,179,982.32 : 120,308,382.12 = 48,021,759.05 : x
  2. Step 2: Convert to fraction form
    87,179,982.32/120,308,382.12 = 48,021,759.05/x
  3. Step 3: Cross multiply
    87,179,982.32x = 120,308,382.12 × 48,021,759.05
  4. Step 4: Simplify right side
    87,179,982.32x = 5,777,420,137,020,317
  5. Step 5: Solve for x
    x = 5,777,420,137,020,317/87,179,982.32
  6. Step 6: Final answer
    x = 66,270,031.07

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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.