Home / 75,777.86-104,569.14-47,096.78

Finding the Fourth Proportional to 75,777.86, 104,569.14 and 47,096.78

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Solution

The fourth proportional to 75,777.86, 104,569.14 and 47,096.78 is: 64,990.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,777.86 : 104,569.14 = 47,096.78 : x
  2. Step 2: Convert to fraction form
    75,777.86/104,569.14 = 47,096.78/x
  3. Step 3: Cross multiply
    75,777.86x = 104,569.14 × 47,096.78
  4. Step 4: Simplify right side
    75,777.86x = 4,924,869,519.95
  5. Step 5: Solve for x
    x = 4,924,869,519.95/75,777.86
  6. Step 6: Final answer
    x = 64,990.88

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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.