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Finding the Fourth Proportional to 85,352.58, 117,759.15 and 47,619.54

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Solution

The fourth proportional to 85,352.58, 117,759.15 and 47,619.54 is: 65,699.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,352.58 : 117,759.15 = 47,619.54 : x
  2. Step 2: Convert to fraction form
    85,352.58/117,759.15 = 47,619.54/x
  3. Step 3: Cross multiply
    85,352.58x = 117,759.15 × 47,619.54
  4. Step 4: Simplify right side
    85,352.58x = 5,607,636,553.79
  5. Step 5: Solve for x
    x = 5,607,636,553.79/85,352.58
  6. Step 6: Final answer
    x = 65,699.67

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1.5x scale

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.