Home / 91,212.21-125,893.85-53,498.61

Finding the Fourth Proportional to 91,212.21, 125,893.85 and 53,498.61

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Solution

The fourth proportional to 91,212.21, 125,893.85 and 53,498.61 is: 73,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,212.21 : 125,893.85 = 53,498.61 : x
  2. Step 2: Convert to fraction form
    91,212.21/125,893.85 = 53,498.61/x
  3. Step 3: Cross multiply
    91,212.21x = 125,893.85 × 53,498.61
  4. Step 4: Simplify right side
    91,212.21x = 6,735,145,715.06
  5. Step 5: Solve for x
    x = 6,735,145,715.06/91,212.21
  6. Step 6: Final answer
    x = 73,840.40

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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.