Home / 85,962.14-128,993.42-36,038.40

Finding the Fourth Proportional to 85,962.14, 128,993.42 and 36,038.40

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Solution

The fourth proportional to 85,962.14, 128,993.42 and 36,038.40 is: 54,078.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,962.14 : 128,993.42 = 36,038.40 : x
  2. Step 2: Convert to fraction form
    85,962.14/128,993.42 = 36,038.40/x
  3. Step 3: Cross multiply
    85,962.14x = 128,993.42 × 36,038.40
  4. Step 4: Simplify right side
    85,962.14x = 4,648,716,467.33
  5. Step 5: Solve for x
    x = 4,648,716,467.33/85,962.14
  6. Step 6: Final answer
    x = 54,078.65

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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.