Home / 85,975.74-128,944.31-36,112.14

Finding the Fourth Proportional to 85,975.74, 128,944.31 and 36,112.14

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Solution

The fourth proportional to 85,975.74, 128,944.31 and 36,112.14 is: 54,160.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,975.74 : 128,944.31 = 36,112.14 : x
  2. Step 2: Convert to fraction form
    85,975.74/128,944.31 = 36,112.14/x
  3. Step 3: Cross multiply
    85,975.74x = 128,944.31 × 36,112.14
  4. Step 4: Simplify right side
    85,975.74x = 4,656,454,794.36
  5. Step 5: Solve for x
    x = 4,656,454,794.36/85,975.74
  6. Step 6: Final answer
    x = 54,160.10

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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.