Home / 86,129.23-129,193.85-26,969.53

Finding the Fourth Proportional to 86,129.23, 129,193.85 and 26,969.53

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Solution

The fourth proportional to 86,129.23, 129,193.85 and 26,969.53 is: 40,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,129.23 : 129,193.85 = 26,969.53 : x
  2. Step 2: Convert to fraction form
    86,129.23/129,193.85 = 26,969.53/x
  3. Step 3: Cross multiply
    86,129.23x = 129,193.85 × 26,969.53
  4. Step 4: Simplify right side
    86,129.23x = 3,484,297,413.39
  5. Step 5: Solve for x
    x = 3,484,297,413.39/86,129.23
  6. Step 6: Final answer
    x = 40,454.30

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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.