Home / 91,611.22-126,415.47-51,319.66

Finding the Fourth Proportional to 91,611.22, 126,415.47 and 51,319.66

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Solution

The fourth proportional to 91,611.22, 126,415.47 and 51,319.66 is: 70,816.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,611.22 : 126,415.47 = 51,319.66 : x
  2. Step 2: Convert to fraction form
    91,611.22/126,415.47 = 51,319.66/x
  3. Step 3: Cross multiply
    91,611.22x = 126,415.47 × 51,319.66
  4. Step 4: Simplify right side
    91,611.22x = 6,487,598,939.14
  5. Step 5: Solve for x
    x = 6,487,598,939.14/91,611.22
  6. Step 6: Final answer
    x = 70,816.64

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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.