Home / 74,979.78-112,427.14-30,554.52

Finding the Fourth Proportional to 74,979.78, 112,427.14 and 30,554.52

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Solution

The fourth proportional to 74,979.78, 112,427.14 and 30,554.52 is: 45,814.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,979.78 : 112,427.14 = 30,554.52 : x
  2. Step 2: Convert to fraction form
    74,979.78/112,427.14 = 30,554.52/x
  3. Step 3: Cross multiply
    74,979.78x = 112,427.14 × 30,554.52
  4. Step 4: Simplify right side
    74,979.78x = 3,435,157,297.67
  5. Step 5: Solve for x
    x = 3,435,157,297.67/74,979.78
  6. Step 6: Final answer
    x = 45,814.45

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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.