Home / 85,879.04-118,453.20-82,988.96

Finding the Fourth Proportional to 85,879.04, 118,453.20 and 82,988.96

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Solution

The fourth proportional to 85,879.04, 118,453.20 and 82,988.96 is: 114,466.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,879.04 : 118,453.20 = 82,988.96 : x
  2. Step 2: Convert to fraction form
    85,879.04/118,453.20 = 82,988.96/x
  3. Step 3: Cross multiply
    85,879.04x = 118,453.20 × 82,988.96
  4. Step 4: Simplify right side
    85,879.04x = 9,830,307,876.67
  5. Step 5: Solve for x
    x = 9,830,307,876.67/85,879.04
  6. Step 6: Final answer
    x = 114,466.90

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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.