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Finding the Fourth Proportional to 51,465.60, 77,205.60 and 21,883.20

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Solution

The fourth proportional to 51,465.60, 77,205.60 and 21,883.20 is: 32,827.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,465.60 : 77,205.60 = 21,883.20 : x
  2. Step 2: Convert to fraction form
    51,465.60/77,205.60 = 21,883.20/x
  3. Step 3: Cross multiply
    51,465.60x = 77,205.60 × 21,883.20
  4. Step 4: Simplify right side
    51,465.60x = 1,689,505,585.92
  5. Step 5: Solve for x
    x = 1,689,505,585.92/51,465.60
  6. Step 6: Final answer
    x = 32,827.86

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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.