Home / 76,336.94-105,339.73-42,344.07

Finding the Fourth Proportional to 76,336.94, 105,339.73 and 42,344.07

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Solution

The fourth proportional to 76,336.94, 105,339.73 and 42,344.07 is: 58,431.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,336.94 : 105,339.73 = 42,344.07 : x
  2. Step 2: Convert to fraction form
    76,336.94/105,339.73 = 42,344.07/x
  3. Step 3: Cross multiply
    76,336.94x = 105,339.73 × 42,344.07
  4. Step 4: Simplify right side
    76,336.94x = 4,460,512,900.90
  5. Step 5: Solve for x
    x = 4,460,512,900.90/76,336.94
  6. Step 6: Final answer
    x = 58,431.91

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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.