Home / 87,409,261.70-131,113,892.55-42,059,629.70

Finding the Fourth Proportional to 87,409,261.70, 131,113,892.55 and 42,059,629.70

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Solution

The fourth proportional to 87,409,261.70, 131,113,892.55 and 42,059,629.70 is: 63,089,444.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,409,261.70 : 131,113,892.55 = 42,059,629.70 : x
  2. Step 2: Convert to fraction form
    87,409,261.70/131,113,892.55 = 42,059,629.70/x
  3. Step 3: Cross multiply
    87,409,261.70x = 131,113,892.55 × 42,059,629.70
  4. Step 4: Simplify right side
    87,409,261.70x = 5,514,601,769,178,589
  5. Step 5: Solve for x
    x = 5,514,601,769,178,589/87,409,261.70
  6. Step 6: Final answer
    x = 63,089,444.55

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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.