Home / 85,861.37-118,477.41-47,620.46

Finding the Fourth Proportional to 85,861.37, 118,477.41 and 47,620.46

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Solution

The fourth proportional to 85,861.37, 118,477.41 and 47,620.46 is: 65,709.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,861.37 : 118,477.41 = 47,620.46 : x
  2. Step 2: Convert to fraction form
    85,861.37/118,477.41 = 47,620.46/x
  3. Step 3: Cross multiply
    85,861.37x = 118,477.41 × 47,620.46
  4. Step 4: Simplify right side
    85,861.37x = 5,641,948,525.71
  5. Step 5: Solve for x
    x = 5,641,948,525.71/85,861.37
  6. Step 6: Final answer
    x = 65,709.98

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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.