Home / 86,998.22-120,055.50-51,190.55

Finding the Fourth Proportional to 86,998.22, 120,055.50 and 51,190.55

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Solution

The fourth proportional to 86,998.22, 120,055.50 and 51,190.55 is: 70,641.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,998.22 : 120,055.50 = 51,190.55 : x
  2. Step 2: Convert to fraction form
    86,998.22/120,055.50 = 51,190.55/x
  3. Step 3: Cross multiply
    86,998.22x = 120,055.50 × 51,190.55
  4. Step 4: Simplify right side
    86,998.22x = 6,145,706,925.46
  5. Step 5: Solve for x
    x = 6,145,706,925.46/86,998.22
  6. Step 6: Final answer
    x = 70,641.76

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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.