Home / 86,998.60-120,052.32-51,181.66

Finding the Fourth Proportional to 86,998.60, 120,052.32 and 51,181.66

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Solution

The fourth proportional to 86,998.60, 120,052.32 and 51,181.66 is: 70,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,998.60 : 120,052.32 = 51,181.66 : x
  2. Step 2: Convert to fraction form
    86,998.60/120,052.32 = 51,181.66/x
  3. Step 3: Cross multiply
    86,998.60x = 120,052.32 × 51,181.66
  4. Step 4: Simplify right side
    86,998.60x = 6,144,477,024.45
  5. Step 5: Solve for x
    x = 6,144,477,024.45/86,998.60
  6. Step 6: Final answer
    x = 70,627.31

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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.