Home / 66,031.32-91,175.56-60,993.66

Finding the Fourth Proportional to 66,031.32, 91,175.56 and 60,993.66

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Solution

The fourth proportional to 66,031.32, 91,175.56 and 60,993.66 is: 84,219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,031.32 : 91,175.56 = 60,993.66 : x
  2. Step 2: Convert to fraction form
    66,031.32/91,175.56 = 60,993.66/x
  3. Step 3: Cross multiply
    66,031.32x = 91,175.56 × 60,993.66
  4. Step 4: Simplify right side
    66,031.32x = 5,561,131,106.95
  5. Step 5: Solve for x
    x = 5,561,131,106.95/66,031.32
  6. Step 6: Final answer
    x = 84,219.60

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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.