Home / 86,994.82-120,047.16-51,177.91

Finding the Fourth Proportional to 86,994.82, 120,047.16 and 51,177.91

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Solution

The fourth proportional to 86,994.82, 120,047.16 and 51,177.91 is: 70,622.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,994.82 : 120,047.16 = 51,177.91 : x
  2. Step 2: Convert to fraction form
    86,994.82/120,047.16 = 51,177.91/x
  3. Step 3: Cross multiply
    86,994.82x = 120,047.16 × 51,177.91
  4. Step 4: Simplify right side
    86,994.82x = 6,143,762,750.24
  5. Step 5: Solve for x
    x = 6,143,762,750.24/86,994.82
  6. Step 6: Final answer
    x = 70,622.17

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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.