Home / 85,245.06-117,615.11-48,450.77

Finding the Fourth Proportional to 85,245.06, 117,615.11 and 48,450.77

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Solution

The fourth proportional to 85,245.06, 117,615.11 and 48,450.77 is: 66,848.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,245.06 : 117,615.11 = 48,450.77 : x
  2. Step 2: Convert to fraction form
    85,245.06/117,615.11 = 48,450.77/x
  3. Step 3: Cross multiply
    85,245.06x = 117,615.11 × 48,450.77
  4. Step 4: Simplify right side
    85,245.06x = 5,698,541,812.81
  5. Step 5: Solve for x
    x = 5,698,541,812.81/85,245.06
  6. Step 6: Final answer
    x = 66,848.94

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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.