Home / 85,511.37-118,004.82-47,785.62

Finding the Fourth Proportional to 85,511.37, 118,004.82 and 47,785.62

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Solution

The fourth proportional to 85,511.37, 118,004.82 and 47,785.62 is: 65,943.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,511.37 : 118,004.82 = 47,785.62 : x
  2. Step 2: Convert to fraction form
    85,511.37/118,004.82 = 47,785.62/x
  3. Step 3: Cross multiply
    85,511.37x = 118,004.82 × 47,785.62
  4. Step 4: Simplify right side
    85,511.37x = 5,638,933,486.69
  5. Step 5: Solve for x
    x = 5,638,933,486.69/85,511.37
  6. Step 6: Final answer
    x = 65,943.67

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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.