Home / 68,941.86-103,415.76-21,557.85

Finding the Fourth Proportional to 68,941.86, 103,415.76 and 21,557.85

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Solution

The fourth proportional to 68,941.86, 103,415.76 and 21,557.85 is: 32,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,941.86 : 103,415.76 = 21,557.85 : x
  2. Step 2: Convert to fraction form
    68,941.86/103,415.76 = 21,557.85/x
  3. Step 3: Cross multiply
    68,941.86x = 103,415.76 × 21,557.85
  4. Step 4: Simplify right side
    68,941.86x = 2,229,421,441.72
  5. Step 5: Solve for x
    x = 2,229,421,441.72/68,941.86
  6. Step 6: Final answer
    x = 32,337.70

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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.