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Finding the Fourth Proportional to 57,487.84, 86,273.70 and 29,431.36

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Solution

The fourth proportional to 57,487.84, 86,273.70 and 29,431.36 is: 44,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,487.84 : 86,273.70 = 29,431.36 : x
  2. Step 2: Convert to fraction form
    57,487.84/86,273.70 = 29,431.36/x
  3. Step 3: Cross multiply
    57,487.84x = 86,273.70 × 29,431.36
  4. Step 4: Simplify right side
    57,487.84x = 2,539,152,323.23
  5. Step 5: Solve for x
    x = 2,539,152,323.23/57,487.84
  6. Step 6: Final answer
    x = 44,168.51

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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.