Home / 85,590.90-118,096.38-49,784.04

Finding the Fourth Proportional to 85,590.90, 118,096.38 and 49,784.04

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Solution

The fourth proportional to 85,590.90, 118,096.38 and 49,784.04 is: 68,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,590.90 : 118,096.38 = 49,784.04 : x
  2. Step 2: Convert to fraction form
    85,590.90/118,096.38 = 49,784.04/x
  3. Step 3: Cross multiply
    85,590.90x = 118,096.38 × 49,784.04
  4. Step 4: Simplify right side
    85,590.90x = 5,879,314,905.78
  5. Step 5: Solve for x
    x = 5,879,314,905.78/85,590.90
  6. Step 6: Final answer
    x = 68,690.89

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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.