Home / 85,853.68-118,478.37-48,125.50

Finding the Fourth Proportional to 85,853.68, 118,478.37 and 48,125.50

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Solution

The fourth proportional to 85,853.68, 118,478.37 and 48,125.50 is: 66,413.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,853.68 : 118,478.37 = 48,125.50 : x
  2. Step 2: Convert to fraction form
    85,853.68/118,478.37 = 48,125.50/x
  3. Step 3: Cross multiply
    85,853.68x = 118,478.37 × 48,125.50
  4. Step 4: Simplify right side
    85,853.68x = 5,701,830,795.44
  5. Step 5: Solve for x
    x = 5,701,830,795.44/85,853.68
  6. Step 6: Final answer
    x = 66,413.35

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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.