Home / 91,819.21-126,711.05-50,983.91

Finding the Fourth Proportional to 91,819.21, 126,711.05 and 50,983.91

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Solution

The fourth proportional to 91,819.21, 126,711.05 and 50,983.91 is: 70,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,819.21 : 126,711.05 = 50,983.91 : x
  2. Step 2: Convert to fraction form
    91,819.21/126,711.05 = 50,983.91/x
  3. Step 3: Cross multiply
    91,819.21x = 126,711.05 × 50,983.91
  4. Step 4: Simplify right side
    91,819.21x = 6,460,225,355.43
  5. Step 5: Solve for x
    x = 6,460,225,355.43/91,819.21
  6. Step 6: Final answer
    x = 70,358.10

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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.