Home / 80,567.49-120,854.27-30,638.28

Finding the Fourth Proportional to 80,567.49, 120,854.27 and 30,638.28

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Solution

The fourth proportional to 80,567.49, 120,854.27 and 30,638.28 is: 45,958.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,567.49 : 120,854.27 = 30,638.28 : x
  2. Step 2: Convert to fraction form
    80,567.49/120,854.27 = 30,638.28/x
  3. Step 3: Cross multiply
    80,567.49x = 120,854.27 × 30,638.28
  4. Step 4: Simplify right side
    80,567.49x = 3,702,766,963.46
  5. Step 5: Solve for x
    x = 3,702,766,963.46/80,567.49
  6. Step 6: Final answer
    x = 45,958.57

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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.