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Finding the Fourth Proportional to 77,363.90, 115,848.90 and 50,988.68

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Solution

The fourth proportional to 77,363.90, 115,848.90 and 50,988.68 is: 76,353.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,363.90 : 115,848.90 = 50,988.68 : x
  2. Step 2: Convert to fraction form
    77,363.90/115,848.90 = 50,988.68/x
  3. Step 3: Cross multiply
    77,363.90x = 115,848.90 × 50,988.68
  4. Step 4: Simplify right side
    77,363.90x = 5,906,982,490.45
  5. Step 5: Solve for x
    x = 5,906,982,490.45/77,363.90
  6. Step 6: Final answer
    x = 76,353.22

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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.