Home / 74,071.09-102,111.78-52,813.45

Finding the Fourth Proportional to 74,071.09, 102,111.78 and 52,813.45

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Solution

The fourth proportional to 74,071.09, 102,111.78 and 52,813.45 is: 72,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,071.09 : 102,111.78 = 52,813.45 : x
  2. Step 2: Convert to fraction form
    74,071.09/102,111.78 = 52,813.45/x
  3. Step 3: Cross multiply
    74,071.09x = 102,111.78 × 52,813.45
  4. Step 4: Simplify right side
    74,071.09x = 5,392,875,387.44
  5. Step 5: Solve for x
    x = 5,392,875,387.44/74,071.09
  6. Step 6: Final answer
    x = 72,806.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.