Home / 54,343.08-74,992.50-30,469.68

Finding the Fourth Proportional to 54,343.08, 74,992.50 and 30,469.68

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Solution

The fourth proportional to 54,343.08, 74,992.50 and 30,469.68 is: 42,047.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,343.08 : 74,992.50 = 30,469.68 : x
  2. Step 2: Convert to fraction form
    54,343.08/74,992.50 = 30,469.68/x
  3. Step 3: Cross multiply
    54,343.08x = 74,992.50 × 30,469.68
  4. Step 4: Simplify right side
    54,343.08x = 2,284,997,477.40
  5. Step 5: Solve for x
    x = 2,284,997,477.40/54,343.08
  6. Step 6: Final answer
    x = 42,047.63

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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.