Home / 53,121.78-79,633.44-18,036.81

Finding the Fourth Proportional to 53,121.78, 79,633.44 and 18,036.81

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Solution

The fourth proportional to 53,121.78, 79,633.44 and 18,036.81 is: 27,038.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,121.78 : 79,633.44 = 18,036.81 : x
  2. Step 2: Convert to fraction form
    53,121.78/79,633.44 = 18,036.81/x
  3. Step 3: Cross multiply
    53,121.78x = 79,633.44 × 18,036.81
  4. Step 4: Simplify right side
    53,121.78x = 1,436,333,226.93
  5. Step 5: Solve for x
    x = 1,436,333,226.93/53,121.78
  6. Step 6: Final answer
    x = 27,038.50

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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.