Home / 85,851.36-118,474.72-48,125.60

Finding the Fourth Proportional to 85,851.36, 118,474.72 and 48,125.60

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Solution

The fourth proportional to 85,851.36, 118,474.72 and 48,125.60 is: 66,413.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,851.36 : 118,474.72 = 48,125.60 : x
  2. Step 2: Convert to fraction form
    85,851.36/118,474.72 = 48,125.60/x
  3. Step 3: Cross multiply
    85,851.36x = 118,474.72 × 48,125.60
  4. Step 4: Simplify right side
    85,851.36x = 5,701,666,984.83
  5. Step 5: Solve for x
    x = 5,701,666,984.83/85,851.36
  6. Step 6: Final answer
    x = 66,413.24

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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.