Home / 78,587.95-117,906.51-50,539.67

Finding the Fourth Proportional to 78,587.95, 117,906.51 and 50,539.67

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Solution

The fourth proportional to 78,587.95, 117,906.51 and 50,539.67 is: 75,825.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,587.95 : 117,906.51 = 50,539.67 : x
  2. Step 2: Convert to fraction form
    78,587.95/117,906.51 = 50,539.67/x
  3. Step 3: Cross multiply
    78,587.95x = 117,906.51 × 50,539.67
  4. Step 4: Simplify right side
    78,587.95x = 5,958,956,106.25
  5. Step 5: Solve for x
    x = 5,958,956,106.25/78,587.95
  6. Step 6: Final answer
    x = 75,825.32

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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.