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Finding the Fourth Proportional to 72,467.50, 99,954.56 and 70,029

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Solution

The fourth proportional to 72,467.50, 99,954.56 and 70,029 is: 96,591.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,467.50 : 99,954.56 = 70,029 : x
  2. Step 2: Convert to fraction form
    72,467.50/99,954.56 = 70,029/x
  3. Step 3: Cross multiply
    72,467.50x = 99,954.56 × 70,029
  4. Step 4: Simplify right side
    72,467.50x = 6,999,717,882.24
  5. Step 5: Solve for x
    x = 6,999,717,882.24/72,467.50
  6. Step 6: Final answer
    x = 96,591.13

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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.