Home / 85,138.41-127,724.37-35,191.65

Finding the Fourth Proportional to 85,138.41, 127,724.37 and 35,191.65

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Solution

The fourth proportional to 85,138.41, 127,724.37 and 35,191.65 is: 52,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,138.41 : 127,724.37 = 35,191.65 : x
  2. Step 2: Convert to fraction form
    85,138.41/127,724.37 = 35,191.65/x
  3. Step 3: Cross multiply
    85,138.41x = 127,724.37 × 35,191.65
  4. Step 4: Simplify right side
    85,138.41x = 4,494,831,325.51
  5. Step 5: Solve for x
    x = 4,494,831,325.51/85,138.41
  6. Step 6: Final answer
    x = 52,794.40

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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.