Home / 78,293.41-117,435.86-48,313.36

Finding the Fourth Proportional to 78,293.41, 117,435.86 and 48,313.36

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Solution

The fourth proportional to 78,293.41, 117,435.86 and 48,313.36 is: 72,467.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,293.41 : 117,435.86 = 48,313.36 : x
  2. Step 2: Convert to fraction form
    78,293.41/117,435.86 = 48,313.36/x
  3. Step 3: Cross multiply
    78,293.41x = 117,435.86 × 48,313.36
  4. Step 4: Simplify right side
    78,293.41x = 5,673,720,981.09
  5. Step 5: Solve for x
    x = 5,673,720,981.09/78,293.41
  6. Step 6: Final answer
    x = 72,467.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.