Home / 51,728.47-77,622.17-20,134.44

Finding the Fourth Proportional to 51,728.47, 77,622.17 and 20,134.44

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Solution

The fourth proportional to 51,728.47, 77,622.17 and 20,134.44 is: 30,213.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,728.47 : 77,622.17 = 20,134.44 : x
  2. Step 2: Convert to fraction form
    51,728.47/77,622.17 = 20,134.44/x
  3. Step 3: Cross multiply
    51,728.47x = 77,622.17 × 20,134.44
  4. Step 4: Simplify right side
    51,728.47x = 1,562,878,823.86
  5. Step 5: Solve for x
    x = 1,562,878,823.86/51,728.47
  6. Step 6: Final answer
    x = 30,213.13

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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.