Home / 91,611.28-126,436.93-51,327.77

Finding the Fourth Proportional to 91,611.28, 126,436.93 and 51,327.77

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Solution

The fourth proportional to 91,611.28, 126,436.93 and 51,327.77 is: 70,839.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,611.28 : 126,436.93 = 51,327.77 : x
  2. Step 2: Convert to fraction form
    91,611.28/126,436.93 = 51,327.77/x
  3. Step 3: Cross multiply
    91,611.28x = 126,436.93 × 51,327.77
  4. Step 4: Simplify right side
    91,611.28x = 6,489,725,405.91
  5. Step 5: Solve for x
    x = 6,489,725,405.91/91,611.28
  6. Step 6: Final answer
    x = 70,839.81

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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.