Home / 54,445.60-75,146.80-39,172.96

Finding the Fourth Proportional to 54,445.60, 75,146.80 and 39,172.96

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Solution

The fourth proportional to 54,445.60, 75,146.80 and 39,172.96 is: 54,067.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,445.60 : 75,146.80 = 39,172.96 : x
  2. Step 2: Convert to fraction form
    54,445.60/75,146.80 = 39,172.96/x
  3. Step 3: Cross multiply
    54,445.60x = 75,146.80 × 39,172.96
  4. Step 4: Simplify right side
    54,445.60x = 2,943,722,590.53
  5. Step 5: Solve for x
    x = 2,943,722,590.53/54,445.60
  6. Step 6: Final answer
    x = 54,067.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.