Home / 78,363.06-117,441.93-36,237.80

Finding the Fourth Proportional to 78,363.06, 117,441.93 and 36,237.80

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Solution

The fourth proportional to 78,363.06, 117,441.93 and 36,237.80 is: 54,309.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,363.06 : 117,441.93 = 36,237.80 : x
  2. Step 2: Convert to fraction form
    78,363.06/117,441.93 = 36,237.80/x
  3. Step 3: Cross multiply
    78,363.06x = 117,441.93 × 36,237.80
  4. Step 4: Simplify right side
    78,363.06x = 4,255,837,170.95
  5. Step 5: Solve for x
    x = 4,255,837,170.95/78,363.06
  6. Step 6: Final answer
    x = 54,309.23

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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.