Home / 91,441.53-126,183.38-51,148.40

Finding the Fourth Proportional to 91,441.53, 126,183.38 and 51,148.40

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Solution

The fourth proportional to 91,441.53, 126,183.38 and 51,148.40 is: 70,581.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,441.53 : 126,183.38 = 51,148.40 : x
  2. Step 2: Convert to fraction form
    91,441.53/126,183.38 = 51,148.40/x
  3. Step 3: Cross multiply
    91,441.53x = 126,183.38 × 51,148.40
  4. Step 4: Simplify right side
    91,441.53x = 6,454,077,106.93
  5. Step 5: Solve for x
    x = 6,454,077,106.93/91,441.53
  6. Step 6: Final answer
    x = 70,581.46

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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.