Home / 86,992.72-120,047.92-51,185.05

Finding the Fourth Proportional to 86,992.72, 120,047.92 and 51,185.05

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Solution

The fourth proportional to 86,992.72, 120,047.92 and 51,185.05 is: 70,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,992.72 : 120,047.92 = 51,185.05 : x
  2. Step 2: Convert to fraction form
    86,992.72/120,047.92 = 51,185.05/x
  3. Step 3: Cross multiply
    86,992.72x = 120,047.92 × 51,185.05
  4. Step 4: Simplify right side
    86,992.72x = 6,144,658,787.60
  5. Step 5: Solve for x
    x = 6,144,658,787.60/86,992.72
  6. Step 6: Final answer
    x = 70,634.17

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1.5x scale

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.