Home / 85,531.38-118,040.57-49,719.07

Finding the Fourth Proportional to 85,531.38, 118,040.57 and 49,719.07

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Solution

The fourth proportional to 85,531.38, 118,040.57 and 49,719.07 is: 68,616.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,531.38 : 118,040.57 = 49,719.07 : x
  2. Step 2: Convert to fraction form
    85,531.38/118,040.57 = 49,719.07/x
  3. Step 3: Cross multiply
    85,531.38x = 118,040.57 × 49,719.07
  4. Step 4: Simplify right side
    85,531.38x = 5,868,867,362.67
  5. Step 5: Solve for x
    x = 5,868,867,362.67/85,531.38
  6. Step 6: Final answer
    x = 68,616.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.