Home / 77,738.04-116,456.74-65,108.12

Finding the Fourth Proportional to 77,738.04, 116,456.74 and 65,108.12

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Solution

The fourth proportional to 77,738.04, 116,456.74 and 65,108.12 is: 97,536.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,738.04 : 116,456.74 = 65,108.12 : x
  2. Step 2: Convert to fraction form
    77,738.04/116,456.74 = 65,108.12/x
  3. Step 3: Cross multiply
    77,738.04x = 116,456.74 × 65,108.12
  4. Step 4: Simplify right side
    77,738.04x = 7,582,278,657.67
  5. Step 5: Solve for x
    x = 7,582,278,657.67/77,738.04
  6. Step 6: Final answer
    x = 97,536.27

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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.