Home / 77,016.65-115,538.12-34,337.57

Finding the Fourth Proportional to 77,016.65, 115,538.12 and 34,337.57

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Solution

The fourth proportional to 77,016.65, 115,538.12 and 34,337.57 is: 51,512.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,016.65 : 115,538.12 = 34,337.57 : x
  2. Step 2: Convert to fraction form
    77,016.65/115,538.12 = 34,337.57/x
  3. Step 3: Cross multiply
    77,016.65x = 115,538.12 × 34,337.57
  4. Step 4: Simplify right side
    77,016.65x = 3,967,297,678.21
  5. Step 5: Solve for x
    x = 3,967,297,678.21/77,016.65
  6. Step 6: Final answer
    x = 51,512.21

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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.