Home / 77,389.19-116,083.79-61,905.23

Finding the Fourth Proportional to 77,389.19, 116,083.79 and 61,905.23

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Solution

The fourth proportional to 77,389.19, 116,083.79 and 61,905.23 is: 92,857.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,389.19 : 116,083.79 = 61,905.23 : x
  2. Step 2: Convert to fraction form
    77,389.19/116,083.79 = 61,905.23/x
  3. Step 3: Cross multiply
    77,389.19x = 116,083.79 × 61,905.23
  4. Step 4: Simplify right side
    77,389.19x = 7,186,193,293.57
  5. Step 5: Solve for x
    x = 7,186,193,293.57/77,389.19
  6. Step 6: Final answer
    x = 92,857.85

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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.