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Finding the Fourth Proportional to 57,699.84, 86,400.24 and 49,432.80

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Solution

The fourth proportional to 57,699.84, 86,400.24 and 49,432.80 is: 74,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,699.84 : 86,400.24 = 49,432.80 : x
  2. Step 2: Convert to fraction form
    57,699.84/86,400.24 = 49,432.80/x
  3. Step 3: Cross multiply
    57,699.84x = 86,400.24 × 49,432.80
  4. Step 4: Simplify right side
    57,699.84x = 4,271,005,783.87
  5. Step 5: Solve for x
    x = 4,271,005,783.87/57,699.84
  6. Step 6: Final answer
    x = 74,021.10

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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.