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Finding the Fourth Proportional to 89,048, 133,572 and 39,800

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Solution

The fourth proportional to 89,048, 133,572 and 39,800 is: 59,700

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,048 : 133,572 = 39,800 : x
  2. Step 2: Convert to fraction form
    89,048/133,572 = 39,800/x
  3. Step 3: Cross multiply
    89,048x = 133,572 × 39,800
  4. Step 4: Simplify right side
    89,048x = 5,316,165,600
  5. Step 5: Solve for x
    x = 5,316,165,600/89,048
  6. Step 6: Final answer
    x = 59,700

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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.