Home / 51,301.40-76,936.10-20,146.20

Finding the Fourth Proportional to 51,301.40, 76,936.10 and 20,146.20

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Solution

The fourth proportional to 51,301.40, 76,936.10 and 20,146.20 is: 30,213.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,301.40 : 76,936.10 = 20,146.20 : x
  2. Step 2: Convert to fraction form
    51,301.40/76,936.10 = 20,146.20/x
  3. Step 3: Cross multiply
    51,301.40x = 76,936.10 × 20,146.20
  4. Step 4: Simplify right side
    51,301.40x = 1,549,970,057.82
  5. Step 5: Solve for x
    x = 1,549,970,057.82/51,301.40
  6. Step 6: Final answer
    x = 30,213.02

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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.