Home / 86,994.32-120,046.48-51,177.42

Finding the Fourth Proportional to 86,994.32, 120,046.48 and 51,177.42

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Solution

The fourth proportional to 86,994.32, 120,046.48 and 51,177.42 is: 70,621.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,994.32 : 120,046.48 = 51,177.42 : x
  2. Step 2: Convert to fraction form
    86,994.32/120,046.48 = 51,177.42/x
  3. Step 3: Cross multiply
    86,994.32x = 120,046.48 × 51,177.42
  4. Step 4: Simplify right side
    86,994.32x = 6,143,669,126.48
  5. Step 5: Solve for x
    x = 6,143,669,126.48/86,994.32
  6. Step 6: Final answer
    x = 70,621.50

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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.