Home / 66,117.57-99,176.35-19,370.44

Finding the Fourth Proportional to 66,117.57, 99,176.35 and 19,370.44

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Solution

The fourth proportional to 66,117.57, 99,176.35 and 19,370.44 is: 29,055.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,117.57 : 99,176.35 = 19,370.44 : x
  2. Step 2: Convert to fraction form
    66,117.57/99,176.35 = 19,370.44/x
  3. Step 3: Cross multiply
    66,117.57x = 99,176.35 × 19,370.44
  4. Step 4: Simplify right side
    66,117.57x = 1,921,089,537.09
  5. Step 5: Solve for x
    x = 1,921,089,537.09/66,117.57
  6. Step 6: Final answer
    x = 29,055.66

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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.