Home / 77,438.52-116,126.51-30,028.65

Finding the Fourth Proportional to 77,438.52, 116,126.51 and 30,028.65

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Solution

The fourth proportional to 77,438.52, 116,126.51 and 30,028.65 is: 45,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,438.52 : 116,126.51 = 30,028.65 : x
  2. Step 2: Convert to fraction form
    77,438.52/116,126.51 = 30,028.65/x
  3. Step 3: Cross multiply
    77,438.52x = 116,126.51 × 30,028.65
  4. Step 4: Simplify right side
    77,438.52x = 3,487,122,234.41
  5. Step 5: Solve for x
    x = 3,487,122,234.41/77,438.52
  6. Step 6: Final answer
    x = 45,030.85

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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.