Home / 85,535.15-128,324.59-35,598.65

Finding the Fourth Proportional to 85,535.15, 128,324.59 and 35,598.65

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Solution

The fourth proportional to 85,535.15, 128,324.59 and 35,598.65 is: 53,407.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,535.15 : 128,324.59 = 35,598.65 : x
  2. Step 2: Convert to fraction form
    85,535.15/128,324.59 = 35,598.65/x
  3. Step 3: Cross multiply
    85,535.15x = 128,324.59 × 35,598.65
  4. Step 4: Simplify right side
    85,535.15x = 4,568,181,435.18
  5. Step 5: Solve for x
    x = 4,568,181,435.18/85,535.15
  6. Step 6: Final answer
    x = 53,407.07

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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.