Home / 77,661.48-116,440.32-62,687.01

Finding the Fourth Proportional to 77,661.48, 116,440.32 and 62,687.01

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Solution

The fourth proportional to 77,661.48, 116,440.32 and 62,687.01 is: 93,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,661.48 : 116,440.32 = 62,687.01 : x
  2. Step 2: Convert to fraction form
    77,661.48/116,440.32 = 62,687.01/x
  3. Step 3: Cross multiply
    77,661.48x = 116,440.32 × 62,687.01
  4. Step 4: Simplify right side
    77,661.48x = 7,299,295,504.24
  5. Step 5: Solve for x
    x = 7,299,295,504.24/77,661.48
  6. Step 6: Final answer
    x = 93,988.62

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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.