Home / 64,721.08-97,081.54-20,351.71

Finding the Fourth Proportional to 64,721.08, 97,081.54 and 20,351.71

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Solution

The fourth proportional to 64,721.08, 97,081.54 and 20,351.71 is: 30,527.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,721.08 : 97,081.54 = 20,351.71 : x
  2. Step 2: Convert to fraction form
    64,721.08/97,081.54 = 20,351.71/x
  3. Step 3: Cross multiply
    64,721.08x = 97,081.54 × 20,351.71
  4. Step 4: Simplify right side
    64,721.08x = 1,975,775,348.43
  5. Step 5: Solve for x
    x = 1,975,775,348.43/64,721.08
  6. Step 6: Final answer
    x = 30,527.54

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1.5x scale

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.