Home / 44,290.40-66,412.80-13,121.60

Finding the Fourth Proportional to 44,290.40, 66,412.80 and 13,121.60

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Solution

The fourth proportional to 44,290.40, 66,412.80 and 13,121.60 is: 19,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,290.40 : 66,412.80 = 13,121.60 : x
  2. Step 2: Convert to fraction form
    44,290.40/66,412.80 = 13,121.60/x
  3. Step 3: Cross multiply
    44,290.40x = 66,412.80 × 13,121.60
  4. Step 4: Simplify right side
    44,290.40x = 871,442,196.48
  5. Step 5: Solve for x
    x = 871,442,196.48/44,290.40
  6. Step 6: Final answer
    x = 19,675.65

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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.