Home / 85,983.04-128,982.24-23,653.76

Finding the Fourth Proportional to 85,983.04, 128,982.24 and 23,653.76

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Solution

The fourth proportional to 85,983.04, 128,982.24 and 23,653.76 is: 35,482.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,983.04 : 128,982.24 = 23,653.76 : x
  2. Step 2: Convert to fraction form
    85,983.04/128,982.24 = 23,653.76/x
  3. Step 3: Cross multiply
    85,983.04x = 128,982.24 × 23,653.76
  4. Step 4: Simplify right side
    85,983.04x = 3,050,914,949.22
  5. Step 5: Solve for x
    x = 3,050,914,949.22/85,983.04
  6. Step 6: Final answer
    x = 35,482.75

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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.