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Finding the Fourth Proportional to 52,777.79, 72,830.64 and 28,899.85

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Solution

The fourth proportional to 52,777.79, 72,830.64 and 28,899.85 is: 39,880.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,777.79 : 72,830.64 = 28,899.85 : x
  2. Step 2: Convert to fraction form
    52,777.79/72,830.64 = 28,899.85/x
  3. Step 3: Cross multiply
    52,777.79x = 72,830.64 × 28,899.85
  4. Step 4: Simplify right side
    52,777.79x = 2,104,794,571.40
  5. Step 5: Solve for x
    x = 2,104,794,571.40/52,777.79
  6. Step 6: Final answer
    x = 39,880.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.