Home / 86,205.24-129,307.86-27,045.64

Finding the Fourth Proportional to 86,205.24, 129,307.86 and 27,045.64

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Solution

The fourth proportional to 86,205.24, 129,307.86 and 27,045.64 is: 40,568.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,205.24 : 129,307.86 = 27,045.64 : x
  2. Step 2: Convert to fraction form
    86,205.24/129,307.86 = 27,045.64/x
  3. Step 3: Cross multiply
    86,205.24x = 129,307.86 × 27,045.64
  4. Step 4: Simplify right side
    86,205.24x = 3,497,213,830.73
  5. Step 5: Solve for x
    x = 3,497,213,830.73/86,205.24
  6. Step 6: Final answer
    x = 40,568.46

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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.