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Finding the Fourth Proportional to 100,498.84, 150,749.70 and 47,913.88

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Solution

The fourth proportional to 100,498.84, 150,749.70 and 47,913.88 is: 71,871.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,498.84 : 150,749.70 = 47,913.88 : x
  2. Step 2: Convert to fraction form
    100,498.84/150,749.70 = 47,913.88/x
  3. Step 3: Cross multiply
    100,498.84x = 150,749.70 × 47,913.88
  4. Step 4: Simplify right side
    100,498.84x = 7,223,003,035.84
  5. Step 5: Solve for x
    x = 7,223,003,035.84/100,498.84
  6. Step 6: Final answer
    x = 71,871.51

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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.