Home / 54,812.08-75,640.64-30,938.96

Finding the Fourth Proportional to 54,812.08, 75,640.64 and 30,938.96

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Solution

The fourth proportional to 54,812.08, 75,640.64 and 30,938.96 is: 42,695.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,812.08 : 75,640.64 = 30,938.96 : x
  2. Step 2: Convert to fraction form
    54,812.08/75,640.64 = 30,938.96/x
  3. Step 3: Cross multiply
    54,812.08x = 75,640.64 × 30,938.96
  4. Step 4: Simplify right side
    54,812.08x = 2,340,242,735.33
  5. Step 5: Solve for x
    x = 2,340,242,735.33/54,812.08
  6. Step 6: Final answer
    x = 42,695.75

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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.