Home / 87,409,261.20-131,113,891.80-42,059,629.20

Finding the Fourth Proportional to 87,409,261.20, 131,113,891.80 and 42,059,629.20

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Solution

The fourth proportional to 87,409,261.20, 131,113,891.80 and 42,059,629.20 is: 63,089,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,409,261.20 : 131,113,891.80 = 42,059,629.20 : x
  2. Step 2: Convert to fraction form
    87,409,261.20/131,113,891.80 = 42,059,629.20/x
  3. Step 3: Cross multiply
    87,409,261.20x = 131,113,891.80 × 42,059,629.20
  4. Step 4: Simplify right side
    87,409,261.20x = 5,514,601,672,076,921
  5. Step 5: Solve for x
    x = 5,514,601,672,076,921/87,409,261.20
  6. Step 6: Final answer
    x = 63,089,443.80

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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.