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Finding the Fourth Proportional to 79,063.32, 109,089.54 and 47,226

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Solution

The fourth proportional to 79,063.32, 109,089.54 and 47,226 is: 65,161.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,063.32 : 109,089.54 = 47,226 : x
  2. Step 2: Convert to fraction form
    79,063.32/109,089.54 = 47,226/x
  3. Step 3: Cross multiply
    79,063.32x = 109,089.54 × 47,226
  4. Step 4: Simplify right side
    79,063.32x = 5,151,862,616.04
  5. Step 5: Solve for x
    x = 5,151,862,616.04/79,063.32
  6. Step 6: Final answer
    x = 65,161.22

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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.