Home / 76,975.34-106,236.71-42,986.02

Finding the Fourth Proportional to 76,975.34, 106,236.71 and 42,986.02

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Solution

The fourth proportional to 76,975.34, 106,236.71 and 42,986.02 is: 59,326.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,975.34 : 106,236.71 = 42,986.02 : x
  2. Step 2: Convert to fraction form
    76,975.34/106,236.71 = 42,986.02/x
  3. Step 3: Cross multiply
    76,975.34x = 106,236.71 × 42,986.02
  4. Step 4: Simplify right side
    76,975.34x = 4,566,693,163.67
  5. Step 5: Solve for x
    x = 4,566,693,163.67/76,975.34
  6. Step 6: Final answer
    x = 59,326.71

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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.