Home / 74,424.58-111,640.51-30,045.79

Finding the Fourth Proportional to 74,424.58, 111,640.51 and 30,045.79

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Solution

The fourth proportional to 74,424.58, 111,640.51 and 30,045.79 is: 45,070.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,424.58 : 111,640.51 = 30,045.79 : x
  2. Step 2: Convert to fraction form
    74,424.58/111,640.51 = 30,045.79/x
  3. Step 3: Cross multiply
    74,424.58x = 111,640.51 × 30,045.79
  4. Step 4: Simplify right side
    74,424.58x = 3,354,327,496.06
  5. Step 5: Solve for x
    x = 3,354,327,496.06/74,424.58
  6. Step 6: Final answer
    x = 45,070.16

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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.