Home / 85,429.64-128,089.26-35,544.12

Finding the Fourth Proportional to 85,429.64, 128,089.26 and 35,544.12

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Solution

The fourth proportional to 85,429.64, 128,089.26 and 35,544.12 is: 53,293.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,429.64 : 128,089.26 = 35,544.12 : x
  2. Step 2: Convert to fraction form
    85,429.64/128,089.26 = 35,544.12/x
  3. Step 3: Cross multiply
    85,429.64x = 128,089.26 × 35,544.12
  4. Step 4: Simplify right side
    85,429.64x = 4,552,820,028.15
  5. Step 5: Solve for x
    x = 4,552,820,028.15/85,429.64
  6. Step 6: Final answer
    x = 53,293.21

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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.