Home / 91,439.88-126,184.14-51,154.35

Finding the Fourth Proportional to 91,439.88, 126,184.14 and 51,154.35

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Solution

The fourth proportional to 91,439.88, 126,184.14 and 51,154.35 is: 70,591.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,439.88 : 126,184.14 = 51,154.35 : x
  2. Step 2: Convert to fraction form
    91,439.88/126,184.14 = 51,154.35/x
  3. Step 3: Cross multiply
    91,439.88x = 126,184.14 × 51,154.35
  4. Step 4: Simplify right side
    91,439.88x = 6,454,867,662.01
  5. Step 5: Solve for x
    x = 6,454,867,662.01/91,439.88
  6. Step 6: Final answer
    x = 70,591.38

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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.