Home / 77,975.03-107,603.12-43,983.03

Finding the Fourth Proportional to 77,975.03, 107,603.12 and 43,983.03

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Solution

The fourth proportional to 77,975.03, 107,603.12 and 43,983.03 is: 60,695.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,975.03 : 107,603.12 = 43,983.03 : x
  2. Step 2: Convert to fraction form
    77,975.03/107,603.12 = 43,983.03/x
  3. Step 3: Cross multiply
    77,975.03x = 107,603.12 × 43,983.03
  4. Step 4: Simplify right side
    77,975.03x = 4,732,711,035.14
  5. Step 5: Solve for x
    x = 4,732,711,035.14/77,975.03
  6. Step 6: Final answer
    x = 60,695.22

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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.