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Finding the Fourth Proportional to 43,352.40, 65,125.80 and 30,230.40

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Solution

The fourth proportional to 43,352.40, 65,125.80 and 30,230.40 is: 45,413.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,352.40 : 65,125.80 = 30,230.40 : x
  2. Step 2: Convert to fraction form
    43,352.40/65,125.80 = 30,230.40/x
  3. Step 3: Cross multiply
    43,352.40x = 65,125.80 × 30,230.40
  4. Step 4: Simplify right side
    43,352.40x = 1,968,778,984.32
  5. Step 5: Solve for x
    x = 1,968,778,984.32/43,352.40
  6. Step 6: Final answer
    x = 45,413.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.