Home / 51,421.89-77,141.06-15,874.86

Finding the Fourth Proportional to 51,421.89, 77,141.06 and 15,874.86

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Solution

The fourth proportional to 51,421.89, 77,141.06 and 15,874.86 is: 23,814.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,421.89 : 77,141.06 = 15,874.86 : x
  2. Step 2: Convert to fraction form
    51,421.89/77,141.06 = 15,874.86/x
  3. Step 3: Cross multiply
    51,421.89x = 77,141.06 × 15,874.86
  4. Step 4: Simplify right side
    51,421.89x = 1,224,603,101.66
  5. Step 5: Solve for x
    x = 1,224,603,101.66/51,421.89
  6. Step 6: Final answer
    x = 23,814.82

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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.