Home / 86,636.16-129,970.45-27,455.94

Finding the Fourth Proportional to 86,636.16, 129,970.45 and 27,455.94

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Solution

The fourth proportional to 86,636.16, 129,970.45 and 27,455.94 is: 41,189.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,636.16 : 129,970.45 = 27,455.94 : x
  2. Step 2: Convert to fraction form
    86,636.16/129,970.45 = 27,455.94/x
  3. Step 3: Cross multiply
    86,636.16x = 129,970.45 × 27,455.94
  4. Step 4: Simplify right side
    86,636.16x = 3,568,461,244.24
  5. Step 5: Solve for x
    x = 3,568,461,244.24/86,636.16
  6. Step 6: Final answer
    x = 41,189.05

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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.