Home / 80,681.24-120,938.48-30,747.94

Finding the Fourth Proportional to 80,681.24, 120,938.48 and 30,747.94

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Solution

The fourth proportional to 80,681.24, 120,938.48 and 30,747.94 is: 46,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,681.24 : 120,938.48 = 30,747.94 : x
  2. Step 2: Convert to fraction form
    80,681.24/120,938.48 = 30,747.94/x
  3. Step 3: Cross multiply
    80,681.24x = 120,938.48 × 30,747.94
  4. Step 4: Simplify right side
    80,681.24x = 3,718,608,785.95
  5. Step 5: Solve for x
    x = 3,718,608,785.95/80,681.24
  6. Step 6: Final answer
    x = 46,090.13

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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.