Home / 77,840.19-107,413.08-43,837.81

Finding the Fourth Proportional to 77,840.19, 107,413.08 and 43,837.81

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Solution

The fourth proportional to 77,840.19, 107,413.08 and 43,837.81 is: 60,492.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,840.19 : 107,413.08 = 43,837.81 : x
  2. Step 2: Convert to fraction form
    77,840.19/107,413.08 = 43,837.81/x
  3. Step 3: Cross multiply
    77,840.19x = 107,413.08 × 43,837.81
  4. Step 4: Simplify right side
    77,840.19x = 4,708,754,192.55
  5. Step 5: Solve for x
    x = 4,708,754,192.55/77,840.19
  6. Step 6: Final answer
    x = 60,492.58

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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.