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Finding the Fourth Proportional to 51,477.60, 77,223.60 and 21,895.20

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Solution

The fourth proportional to 51,477.60, 77,223.60 and 21,895.20 is: 32,845.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,477.60 : 77,223.60 = 21,895.20 : x
  2. Step 2: Convert to fraction form
    51,477.60/77,223.60 = 21,895.20/x
  3. Step 3: Cross multiply
    51,477.60x = 77,223.60 × 21,895.20
  4. Step 4: Simplify right side
    51,477.60x = 1,690,826,166.72
  5. Step 5: Solve for x
    x = 1,690,826,166.72/51,477.60
  6. Step 6: Final answer
    x = 32,845.86

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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.