Home / 80,547.36-120,793.68-30,615.44

Finding the Fourth Proportional to 80,547.36, 120,793.68 and 30,615.44

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Solution

The fourth proportional to 80,547.36, 120,793.68 and 30,615.44 is: 45,912.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,547.36 : 120,793.68 = 30,615.44 : x
  2. Step 2: Convert to fraction form
    80,547.36/120,793.68 = 30,615.44/x
  3. Step 3: Cross multiply
    80,547.36x = 120,793.68 × 30,615.44
  4. Step 4: Simplify right side
    80,547.36x = 3,698,151,662.42
  5. Step 5: Solve for x
    x = 3,698,151,662.42/80,547.36
  6. Step 6: Final answer
    x = 45,912.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.