Home / 85,576.16-128,427.30-40,597.66

Finding the Fourth Proportional to 85,576.16, 128,427.30 and 40,597.66

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Solution

The fourth proportional to 85,576.16, 128,427.30 and 40,597.66 is: 60,926.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,576.16 : 128,427.30 = 40,597.66 : x
  2. Step 2: Convert to fraction form
    85,576.16/128,427.30 = 40,597.66/x
  3. Step 3: Cross multiply
    85,576.16x = 128,427.30 × 40,597.66
  4. Step 4: Simplify right side
    85,576.16x = 5,213,847,860.12
  5. Step 5: Solve for x
    x = 5,213,847,860.12/85,576.16
  6. Step 6: Final answer
    x = 60,926.41

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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.