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Finding the Fourth Proportional to 99,300, 137,034 and 54,588

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Solution

The fourth proportional to 99,300, 137,034 and 54,588 is: 75,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,300 : 137,034 = 54,588 : x
  2. Step 2: Convert to fraction form
    99,300/137,034 = 54,588/x
  3. Step 3: Cross multiply
    99,300x = 137,034 × 54,588
  4. Step 4: Simplify right side
    99,300x = 7,480,411,992
  5. Step 5: Solve for x
    x = 7,480,411,992/99,300
  6. Step 6: Final answer
    x = 75,331.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.