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Finding the Fourth Proportional to 75,763.50, 104,598.48 and 67,356.78

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Solution

The fourth proportional to 75,763.50, 104,598.48 and 67,356.78 is: 92,992.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,763.50 : 104,598.48 = 67,356.78 : x
  2. Step 2: Convert to fraction form
    75,763.50/104,598.48 = 67,356.78/x
  3. Step 3: Cross multiply
    75,763.50x = 104,598.48 × 67,356.78
  4. Step 4: Simplify right side
    75,763.50x = 7,045,416,805.69
  5. Step 5: Solve for x
    x = 7,045,416,805.69/75,763.50
  6. Step 6: Final answer
    x = 92,992.23

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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.