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Finding the Fourth Proportional to 89,994, 124,191.72 and 50,250

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Solution

The fourth proportional to 89,994, 124,191.72 and 50,250 is: 69,345

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,994 : 124,191.72 = 50,250 : x
  2. Step 2: Convert to fraction form
    89,994/124,191.72 = 50,250/x
  3. Step 3: Cross multiply
    89,994x = 124,191.72 × 50,250
  4. Step 4: Simplify right side
    89,994x = 6,240,633,930
  5. Step 5: Solve for x
    x = 6,240,633,930/89,994
  6. Step 6: Final answer
    x = 69,345

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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.