Home / 78,359.06-117,435.93-36,233.80

Finding the Fourth Proportional to 78,359.06, 117,435.93 and 36,233.80

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Solution

The fourth proportional to 78,359.06, 117,435.93 and 36,233.80 is: 54,303.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,359.06 : 117,435.93 = 36,233.80 : x
  2. Step 2: Convert to fraction form
    78,359.06/117,435.93 = 36,233.80/x
  3. Step 3: Cross multiply
    78,359.06x = 117,435.93 × 36,233.80
  4. Step 4: Simplify right side
    78,359.06x = 4,255,150,000.43
  5. Step 5: Solve for x
    x = 4,255,150,000.43/78,359.06
  6. Step 6: Final answer
    x = 54,303.23

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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.