Home / 53,606.72-73,971.68-30,938.06

Finding the Fourth Proportional to 53,606.72, 73,971.68 and 30,938.06

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Solution

The fourth proportional to 53,606.72, 73,971.68 and 30,938.06 is: 42,691.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,606.72 : 73,971.68 = 30,938.06 : x
  2. Step 2: Convert to fraction form
    53,606.72/73,971.68 = 30,938.06/x
  3. Step 3: Cross multiply
    53,606.72x = 73,971.68 × 30,938.06
  4. Step 4: Simplify right side
    53,606.72x = 2,288,540,274.14
  5. Step 5: Solve for x
    x = 2,288,540,274.14/53,606.72
  6. Step 6: Final answer
    x = 42,691.29

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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.