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Finding the Fourth Proportional to 60,573, 90,860.32 and 19,020

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Solution

The fourth proportional to 60,573, 90,860.32 and 19,020 is: 28,530.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,573 : 90,860.32 = 19,020 : x
  2. Step 2: Convert to fraction form
    60,573/90,860.32 = 19,020/x
  3. Step 3: Cross multiply
    60,573x = 90,860.32 × 19,020
  4. Step 4: Simplify right side
    60,573x = 1,728,163,286.40
  5. Step 5: Solve for x
    x = 1,728,163,286.40/60,573
  6. Step 6: Final answer
    x = 28,530.26

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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.