Home / 85,983.65-128,983.67-33,397.23

Finding the Fourth Proportional to 85,983.65, 128,983.67 and 33,397.23

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Solution

The fourth proportional to 85,983.65, 128,983.67 and 33,397.23 is: 50,099.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,983.65 : 128,983.67 = 33,397.23 : x
  2. Step 2: Convert to fraction form
    85,983.65/128,983.67 = 33,397.23/x
  3. Step 3: Cross multiply
    85,983.65x = 128,983.67 × 33,397.23
  4. Step 4: Simplify right side
    85,983.65x = 4,307,697,293.23
  5. Step 5: Solve for x
    x = 4,307,697,293.23/85,983.65
  6. Step 6: Final answer
    x = 50,099.03

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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.