Home / 85,919.76-118,567.80-48,193.20

Finding the Fourth Proportional to 85,919.76, 118,567.80 and 48,193.20

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Solution

The fourth proportional to 85,919.76, 118,567.80 and 48,193.20 is: 66,505.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,919.76 : 118,567.80 = 48,193.20 : x
  2. Step 2: Convert to fraction form
    85,919.76/118,567.80 = 48,193.20/x
  3. Step 3: Cross multiply
    85,919.76x = 118,567.80 × 48,193.20
  4. Step 4: Simplify right side
    85,919.76x = 5,714,161,698.96
  5. Step 5: Solve for x
    x = 5,714,161,698.96/85,919.76
  6. Step 6: Final answer
    x = 66,505.79

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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.