Home / 75,678.42-104,401.10-48,829.48

Finding the Fourth Proportional to 75,678.42, 104,401.10 and 48,829.48

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Solution

The fourth proportional to 75,678.42, 104,401.10 and 48,829.48 is: 67,362.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,678.42 : 104,401.10 = 48,829.48 : x
  2. Step 2: Convert to fraction form
    75,678.42/104,401.10 = 48,829.48/x
  3. Step 3: Cross multiply
    75,678.42x = 104,401.10 × 48,829.48
  4. Step 4: Simplify right side
    75,678.42x = 5,097,851,424.43
  5. Step 5: Solve for x
    x = 5,097,851,424.43/75,678.42
  6. Step 6: Final answer
    x = 67,362.02

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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.