Home / 76,791.17-105,968.45-42,803.37

Finding the Fourth Proportional to 76,791.17, 105,968.45 and 42,803.37

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Solution

The fourth proportional to 76,791.17, 105,968.45 and 42,803.37 is: 59,066.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,791.17 : 105,968.45 = 42,803.37 : x
  2. Step 2: Convert to fraction form
    76,791.17/105,968.45 = 42,803.37/x
  3. Step 3: Cross multiply
    76,791.17x = 105,968.45 × 42,803.37
  4. Step 4: Simplify right side
    76,791.17x = 4,535,806,773.68
  5. Step 5: Solve for x
    x = 4,535,806,773.68/76,791.17
  6. Step 6: Final answer
    x = 59,066.78

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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.