Home / 91,428.62-126,165.60-51,135.44

Finding the Fourth Proportional to 91,428.62, 126,165.60 and 51,135.44

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Solution

The fourth proportional to 91,428.62, 126,165.60 and 51,135.44 is: 70,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,428.62 : 126,165.60 = 51,135.44 : x
  2. Step 2: Convert to fraction form
    91,428.62/126,165.60 = 51,135.44/x
  3. Step 3: Cross multiply
    91,428.62x = 126,165.60 × 51,135.44
  4. Step 4: Simplify right side
    91,428.62x = 6,451,532,838.04
  5. Step 5: Solve for x
    x = 6,451,532,838.04/91,428.62
  6. Step 6: Final answer
    x = 70,563.61

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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.