Home / 80,150.36-110,606.85-47,899.67

Finding the Fourth Proportional to 80,150.36, 110,606.85 and 47,899.67

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Solution

The fourth proportional to 80,150.36, 110,606.85 and 47,899.67 is: 66,101.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,150.36 : 110,606.85 = 47,899.67 : x
  2. Step 2: Convert to fraction form
    80,150.36/110,606.85 = 47,899.67/x
  3. Step 3: Cross multiply
    80,150.36x = 110,606.85 × 47,899.67
  4. Step 4: Simplify right side
    80,150.36x = 5,298,031,614.74
  5. Step 5: Solve for x
    x = 5,298,031,614.74/80,150.36
  6. Step 6: Final answer
    x = 66,101.16

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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.