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Finding the Fourth Proportional to 85,064, 127,553.10 and 49,536.80

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Solution

The fourth proportional to 85,064, 127,553.10 and 49,536.80 is: 74,280.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,064 : 127,553.10 = 49,536.80 : x
  2. Step 2: Convert to fraction form
    85,064/127,553.10 = 49,536.80/x
  3. Step 3: Cross multiply
    85,064x = 127,553.10 × 49,536.80
  4. Step 4: Simplify right side
    85,064x = 6,318,572,404.08
  5. Step 5: Solve for x
    x = 6,318,572,404.08/85,064
  6. Step 6: Final answer
    x = 74,280.22

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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.