Home / 86,995.97-120,052.40-51,188.30

Finding the Fourth Proportional to 86,995.97, 120,052.40 and 51,188.30

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Solution

The fourth proportional to 86,995.97, 120,052.40 and 51,188.30 is: 70,638.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,995.97 : 120,052.40 = 51,188.30 : x
  2. Step 2: Convert to fraction form
    86,995.97/120,052.40 = 51,188.30/x
  3. Step 3: Cross multiply
    86,995.97x = 120,052.40 × 51,188.30
  4. Step 4: Simplify right side
    86,995.97x = 6,145,277,860.91
  5. Step 5: Solve for x
    x = 6,145,277,860.91/86,995.97
  6. Step 6: Final answer
    x = 70,638.65

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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.