Home / 91,387.56-126,114.12-51,101.40

Finding the Fourth Proportional to 91,387.56, 126,114.12 and 51,101.40

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Solution

The fourth proportional to 91,387.56, 126,114.12 and 51,101.40 is: 70,519.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,387.56 : 126,114.12 = 51,101.40 : x
  2. Step 2: Convert to fraction form
    91,387.56/126,114.12 = 51,101.40/x
  3. Step 3: Cross multiply
    91,387.56x = 126,114.12 × 51,101.40
  4. Step 4: Simplify right side
    91,387.56x = 6,444,608,091.77
  5. Step 5: Solve for x
    x = 6,444,608,091.77/91,387.56
  6. Step 6: Final answer
    x = 70,519.53

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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.