Home / 51,837.28-77,790.24-28,480

Finding the Fourth Proportional to 51,837.28, 77,790.24 and 28,480

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Solution

The fourth proportional to 51,837.28, 77,790.24 and 28,480 is: 42,738.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,837.28 : 77,790.24 = 28,480 : x
  2. Step 2: Convert to fraction form
    51,837.28/77,790.24 = 28,480/x
  3. Step 3: Cross multiply
    51,837.28x = 77,790.24 × 28,480
  4. Step 4: Simplify right side
    51,837.28x = 2,215,466,035.20
  5. Step 5: Solve for x
    x = 2,215,466,035.20/51,837.28
  6. Step 6: Final answer
    x = 42,738.86

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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.