Home / 85,132.03-117,378.10-53,245.57

Finding the Fourth Proportional to 85,132.03, 117,378.10 and 53,245.57

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Solution

The fourth proportional to 85,132.03, 117,378.10 and 53,245.57 is: 73,413.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,132.03 : 117,378.10 = 53,245.57 : x
  2. Step 2: Convert to fraction form
    85,132.03/117,378.10 = 53,245.57/x
  3. Step 3: Cross multiply
    85,132.03x = 117,378.10 × 53,245.57
  4. Step 4: Simplify right side
    85,132.03x = 6,249,863,840.02
  5. Step 5: Solve for x
    x = 6,249,863,840.02/85,132.03
  6. Step 6: Final answer
    x = 73,413.78

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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.