Home / 85,861.42-118,488.69-48,135.67

Finding the Fourth Proportional to 85,861.42, 118,488.69 and 48,135.67

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Solution

The fourth proportional to 85,861.42, 118,488.69 and 48,135.67 is: 66,427.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,861.42 : 118,488.69 = 48,135.67 : x
  2. Step 2: Convert to fraction form
    85,861.42/118,488.69 = 48,135.67/x
  3. Step 3: Cross multiply
    85,861.42x = 118,488.69 × 48,135.67
  4. Step 4: Simplify right side
    85,861.42x = 5,703,532,480.57
  5. Step 5: Solve for x
    x = 5,703,532,480.57/85,861.42
  6. Step 6: Final answer
    x = 66,427.19

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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.