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Finding the Fourth Proportional to 55,361.48, 83,055.41 and 17,921.57

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Solution

The fourth proportional to 55,361.48, 83,055.41 and 17,921.57 is: 26,886.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,361.48 : 83,055.41 = 17,921.57 : x
  2. Step 2: Convert to fraction form
    55,361.48/83,055.41 = 17,921.57/x
  3. Step 3: Cross multiply
    55,361.48x = 83,055.41 × 17,921.57
  4. Step 4: Simplify right side
    55,361.48x = 1,488,483,344.19
  5. Step 5: Solve for x
    x = 1,488,483,344.19/55,361.48
  6. Step 6: Final answer
    x = 26,886.62

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1.5x scale

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.