Home / 80,567.51-120,851.31-30,636.08

Finding the Fourth Proportional to 80,567.51, 120,851.31 and 30,636.08

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Solution

The fourth proportional to 80,567.51, 120,851.31 and 30,636.08 is: 45,954.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,567.51 : 120,851.31 = 30,636.08 : x
  2. Step 2: Convert to fraction form
    80,567.51/120,851.31 = 30,636.08/x
  3. Step 3: Cross multiply
    80,567.51x = 120,851.31 × 30,636.08
  4. Step 4: Simplify right side
    80,567.51x = 3,702,410,401.26
  5. Step 5: Solve for x
    x = 3,702,410,401.26/80,567.51
  6. Step 6: Final answer
    x = 45,954.14

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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.