Home / 75,420.04-104,087.82-48,220.78

Finding the Fourth Proportional to 75,420.04, 104,087.82 and 48,220.78

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Solution

The fourth proportional to 75,420.04, 104,087.82 and 48,220.78 is: 66,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,420.04 : 104,087.82 = 48,220.78 : x
  2. Step 2: Convert to fraction form
    75,420.04/104,087.82 = 48,220.78/x
  3. Step 3: Cross multiply
    75,420.04x = 104,087.82 × 48,220.78
  4. Step 4: Simplify right side
    75,420.04x = 5,019,195,868.90
  5. Step 5: Solve for x
    x = 5,019,195,868.90/75,420.04
  6. Step 6: Final answer
    x = 66,549.90

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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.