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Finding the Fourth Proportional to 75,769, 104,606.07 and 67,362.28

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Solution

The fourth proportional to 75,769, 104,606.07 and 67,362.28 is: 92,999.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,769 : 104,606.07 = 67,362.28 : x
  2. Step 2: Convert to fraction form
    75,769/104,606.07 = 67,362.28/x
  3. Step 3: Cross multiply
    75,769x = 104,606.07 × 67,362.28
  4. Step 4: Simplify right side
    75,769x = 7,046,503,377.04
  5. Step 5: Solve for x
    x = 7,046,503,377.04/75,769
  6. Step 6: Final answer
    x = 92,999.82

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1.5x scale

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.