Home / 75,777.77-104,618.12-67,371

Finding the Fourth Proportional to 75,777.77, 104,618.12 and 67,371

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Solution

The fourth proportional to 75,777.77, 104,618.12 and 67,371 is: 93,011.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,777.77 : 104,618.12 = 67,371 : x
  2. Step 2: Convert to fraction form
    75,777.77/104,618.12 = 67,371/x
  3. Step 3: Cross multiply
    75,777.77x = 104,618.12 × 67,371
  4. Step 4: Simplify right side
    75,777.77x = 7,048,227,025.67
  5. Step 5: Solve for x
    x = 7,048,227,025.67/75,777.77
  6. Step 6: Final answer
    x = 93,011.81

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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.