Home / 81,217.08-112,082.04-45,408.60

Finding the Fourth Proportional to 81,217.08, 112,082.04 and 45,408.60

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Solution

The fourth proportional to 81,217.08, 112,082.04 and 45,408.60 is: 62,665.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,217.08 : 112,082.04 = 45,408.60 : x
  2. Step 2: Convert to fraction form
    81,217.08/112,082.04 = 45,408.60/x
  3. Step 3: Cross multiply
    81,217.08x = 112,082.04 × 45,408.60
  4. Step 4: Simplify right side
    81,217.08x = 5,089,488,521.54
  5. Step 5: Solve for x
    x = 5,089,488,521.54/81,217.08
  6. Step 6: Final answer
    x = 62,665.25

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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.