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Finding the Fourth Proportional to 67,877.49, 101,797.10 and 20,479.74

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Solution

The fourth proportional to 67,877.49, 101,797.10 and 20,479.74 is: 30,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,877.49 : 101,797.10 = 20,479.74 : x
  2. Step 2: Convert to fraction form
    67,877.49/101,797.10 = 20,479.74/x
  3. Step 3: Cross multiply
    67,877.49x = 101,797.10 × 20,479.74
  4. Step 4: Simplify right side
    67,877.49x = 2,084,778,038.36
  5. Step 5: Solve for x
    x = 2,084,778,038.36/67,877.49
  6. Step 6: Final answer
    x = 30,713.84

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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.