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Finding the Fourth Proportional to 85,143.69, 127,723.23 and 32,553.63

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Solution

The fourth proportional to 85,143.69, 127,723.23 and 32,553.63 is: 48,833.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,143.69 : 127,723.23 = 32,553.63 : x
  2. Step 2: Convert to fraction form
    85,143.69/127,723.23 = 32,553.63/x
  3. Step 3: Cross multiply
    85,143.69x = 127,723.23 × 32,553.63
  4. Step 4: Simplify right side
    85,143.69x = 4,157,854,771.82
  5. Step 5: Solve for x
    x = 4,157,854,771.82/85,143.69
  6. Step 6: Final answer
    x = 48,833.39

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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.