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Finding the Fourth Proportional to 55,473, 83,209.50 and 18,537

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Solution

The fourth proportional to 55,473, 83,209.50 and 18,537 is: 27,805.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,473 : 83,209.50 = 18,537 : x
  2. Step 2: Convert to fraction form
    55,473/83,209.50 = 18,537/x
  3. Step 3: Cross multiply
    55,473x = 83,209.50 × 18,537
  4. Step 4: Simplify right side
    55,473x = 1,542,454,501.50
  5. Step 5: Solve for x
    x = 1,542,454,501.50/55,473
  6. Step 6: Final answer
    x = 27,805.50

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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.