Home / 91,681.44-126,530.88-51,406.08

Finding the Fourth Proportional to 91,681.44, 126,530.88 and 51,406.08

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Solution

The fourth proportional to 91,681.44, 126,530.88 and 51,406.08 is: 70,946.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,681.44 : 126,530.88 = 51,406.08 : x
  2. Step 2: Convert to fraction form
    91,681.44/126,530.88 = 51,406.08/x
  3. Step 3: Cross multiply
    91,681.44x = 126,530.88 × 51,406.08
  4. Step 4: Simplify right side
    91,681.44x = 6,504,456,539.75
  5. Step 5: Solve for x
    x = 6,504,456,539.75/91,681.44
  6. Step 6: Final answer
    x = 70,946.27

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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.