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Finding the Fourth Proportional to 60,209.04, 90,369 and 30,648

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Solution

The fourth proportional to 60,209.04, 90,369 and 30,648 is: 46,000.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,209.04 : 90,369 = 30,648 : x
  2. Step 2: Convert to fraction form
    60,209.04/90,369 = 30,648/x
  3. Step 3: Cross multiply
    60,209.04x = 90,369 × 30,648
  4. Step 4: Simplify right side
    60,209.04x = 2,769,629,112
  5. Step 5: Solve for x
    x = 2,769,629,112/60,209.04
  6. Step 6: Final answer
    x = 46,000.22

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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.