Home / 91,398.20-126,141.26-51,114.20

Finding the Fourth Proportional to 91,398.20, 126,141.26 and 51,114.20

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Solution

The fourth proportional to 91,398.20, 126,141.26 and 51,114.20 is: 70,544.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,398.20 : 126,141.26 = 51,114.20 : x
  2. Step 2: Convert to fraction form
    91,398.20/126,141.26 = 51,114.20/x
  3. Step 3: Cross multiply
    91,398.20x = 126,141.26 × 51,114.20
  4. Step 4: Simplify right side
    91,398.20x = 6,447,608,705.61
  5. Step 5: Solve for x
    x = 6,447,608,705.61/91,398.20
  6. Step 6: Final answer
    x = 70,544.16

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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.