Home / 45,538.17-68,315.48-20,589.97

Finding the Fourth Proportional to 45,538.17, 68,315.48 and 20,589.97

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Solution

The fourth proportional to 45,538.17, 68,315.48 and 20,589.97 is: 30,888.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,538.17 : 68,315.48 = 20,589.97 : x
  2. Step 2: Convert to fraction form
    45,538.17/68,315.48 = 20,589.97/x
  3. Step 3: Cross multiply
    45,538.17x = 68,315.48 × 20,589.97
  4. Step 4: Simplify right side
    45,538.17x = 1,406,613,564.42
  5. Step 5: Solve for x
    x = 1,406,613,564.42/45,538.17
  6. Step 6: Final answer
    x = 30,888.67

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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.