Home / 66,788.42-100,153.26-20,030.36

Finding the Fourth Proportional to 66,788.42, 100,153.26 and 20,030.36

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Solution

The fourth proportional to 66,788.42, 100,153.26 and 20,030.36 is: 30,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,788.42 : 100,153.26 = 20,030.36 : x
  2. Step 2: Convert to fraction form
    66,788.42/100,153.26 = 20,030.36/x
  3. Step 3: Cross multiply
    66,788.42x = 100,153.26 × 20,030.36
  4. Step 4: Simplify right side
    66,788.42x = 2,006,105,352.21
  5. Step 5: Solve for x
    x = 2,006,105,352.21/66,788.42
  6. Step 6: Final answer
    x = 30,036.73

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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.