Home / 85,840.75-118,460.24-48,115

Finding the Fourth Proportional to 85,840.75, 118,460.24 and 48,115

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Solution

The fourth proportional to 85,840.75, 118,460.24 and 48,115 is: 66,398.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,840.75 : 118,460.24 = 48,115 : x
  2. Step 2: Convert to fraction form
    85,840.75/118,460.24 = 48,115/x
  3. Step 3: Cross multiply
    85,840.75x = 118,460.24 × 48,115
  4. Step 4: Simplify right side
    85,840.75x = 5,699,714,447.60
  5. Step 5: Solve for x
    x = 5,699,714,447.60/85,840.75
  6. Step 6: Final answer
    x = 66,398.70

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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.