Home / 85,989.54-118,659.06-48,256.50

Finding the Fourth Proportional to 85,989.54, 118,659.06 and 48,256.50

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Solution

The fourth proportional to 85,989.54, 118,659.06 and 48,256.50 is: 66,590.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,989.54 : 118,659.06 = 48,256.50 : x
  2. Step 2: Convert to fraction form
    85,989.54/118,659.06 = 48,256.50/x
  3. Step 3: Cross multiply
    85,989.54x = 118,659.06 × 48,256.50
  4. Step 4: Simplify right side
    85,989.54x = 5,726,070,928.89
  5. Step 5: Solve for x
    x = 5,726,070,928.89/85,989.54
  6. Step 6: Final answer
    x = 66,590.32

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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.