Home / 85,904.78-118,548.24-48,179.03

Finding the Fourth Proportional to 85,904.78, 118,548.24 and 48,179.03

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Solution

The fourth proportional to 85,904.78, 118,548.24 and 48,179.03 is: 66,486.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,904.78 : 118,548.24 = 48,179.03 : x
  2. Step 2: Convert to fraction form
    85,904.78/118,548.24 = 48,179.03/x
  3. Step 3: Cross multiply
    85,904.78x = 118,548.24 × 48,179.03
  4. Step 4: Simplify right side
    85,904.78x = 5,711,539,211.41
  5. Step 5: Solve for x
    x = 5,711,539,211.41/85,904.78
  6. Step 6: Final answer
    x = 66,486.86

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1.5x scale

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.