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Finding the Fourth Proportional to 55,303, 82,954.81 and 13,750

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Solution

The fourth proportional to 55,303, 82,954.81 and 13,750 is: 20,625.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,303 : 82,954.81 = 13,750 : x
  2. Step 2: Convert to fraction form
    55,303/82,954.81 = 13,750/x
  3. Step 3: Cross multiply
    55,303x = 82,954.81 × 13,750
  4. Step 4: Simplify right side
    55,303x = 1,140,628,568.75
  5. Step 5: Solve for x
    x = 1,140,628,568.75/55,303
  6. Step 6: Final answer
    x = 20,625.08

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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.