Home / 57,433.37-86,142.49-19,985.45

Finding the Fourth Proportional to 57,433.37, 86,142.49 and 19,985.45

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Solution

The fourth proportional to 57,433.37, 86,142.49 and 19,985.45 is: 29,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,433.37 : 86,142.49 = 19,985.45 : x
  2. Step 2: Convert to fraction form
    57,433.37/86,142.49 = 19,985.45/x
  3. Step 3: Cross multiply
    57,433.37x = 86,142.49 × 19,985.45
  4. Step 4: Simplify right side
    57,433.37x = 1,721,595,946.09
  5. Step 5: Solve for x
    x = 1,721,595,946.09/57,433.37
  6. Step 6: Final answer
    x = 29,975.54

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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.