Home / 78,430.24-117,614.22-28,483.09

Finding the Fourth Proportional to 78,430.24, 117,614.22 and 28,483.09

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Solution

The fourth proportional to 78,430.24, 117,614.22 and 28,483.09 is: 42,713.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,430.24 : 117,614.22 = 28,483.09 : x
  2. Step 2: Convert to fraction form
    78,430.24/117,614.22 = 28,483.09/x
  3. Step 3: Cross multiply
    78,430.24x = 117,614.22 × 28,483.09
  4. Step 4: Simplify right side
    78,430.24x = 3,350,016,413.54
  5. Step 5: Solve for x
    x = 3,350,016,413.54/78,430.24
  6. Step 6: Final answer
    x = 42,713.33

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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.