Home / 54,117.78-74,678.94-30,239.82

Finding the Fourth Proportional to 54,117.78, 74,678.94 and 30,239.82

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Solution

The fourth proportional to 54,117.78, 74,678.94 and 30,239.82 is: 41,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,117.78 : 74,678.94 = 30,239.82 : x
  2. Step 2: Convert to fraction form
    54,117.78/74,678.94 = 30,239.82/x
  3. Step 3: Cross multiply
    54,117.78x = 74,678.94 × 30,239.82
  4. Step 4: Simplify right side
    54,117.78x = 2,258,277,703.39
  5. Step 5: Solve for x
    x = 2,258,277,703.39/54,117.78
  6. Step 6: Final answer
    x = 41,728.94

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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.