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Finding the Fourth Proportional to 51,856.80, 77,785.20 and 16,797.60

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Solution

The fourth proportional to 51,856.80, 77,785.20 and 16,797.60 is: 25,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,856.80 : 77,785.20 = 16,797.60 : x
  2. Step 2: Convert to fraction form
    51,856.80/77,785.20 = 16,797.60/x
  3. Step 3: Cross multiply
    51,856.80x = 77,785.20 × 16,797.60
  4. Step 4: Simplify right side
    51,856.80x = 1,306,604,675.52
  5. Step 5: Solve for x
    x = 1,306,604,675.52/51,856.80
  6. Step 6: Final answer
    x = 25,196.40

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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.