Home / 91,454.01-126,209.25-51,166.86

Finding the Fourth Proportional to 91,454.01, 126,209.25 and 51,166.86

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Solution

The fourth proportional to 91,454.01, 126,209.25 and 51,166.86 is: 70,611.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,454.01 : 126,209.25 = 51,166.86 : x
  2. Step 2: Convert to fraction form
    91,454.01/126,209.25 = 51,166.86/x
  3. Step 3: Cross multiply
    91,454.01x = 126,209.25 × 51,166.86
  4. Step 4: Simplify right side
    91,454.01x = 6,457,731,025.46
  5. Step 5: Solve for x
    x = 6,457,731,025.46/91,454.01
  6. Step 6: Final answer
    x = 70,611.79

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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.