Home / 47,235.78-70,857.43-15,644.57

Finding the Fourth Proportional to 47,235.78, 70,857.43 and 15,644.57

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Solution

The fourth proportional to 47,235.78, 70,857.43 and 15,644.57 is: 23,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,235.78 : 70,857.43 = 15,644.57 : x
  2. Step 2: Convert to fraction form
    47,235.78/70,857.43 = 15,644.57/x
  3. Step 3: Cross multiply
    47,235.78x = 70,857.43 × 15,644.57
  4. Step 4: Simplify right side
    47,235.78x = 1,108,533,917.54
  5. Step 5: Solve for x
    x = 1,108,533,917.54/47,235.78
  6. Step 6: Final answer
    x = 23,468.10

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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.