Home / 76,692.11-105,834.26-42,699.86

Finding the Fourth Proportional to 76,692.11, 105,834.26 and 42,699.86

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Solution

The fourth proportional to 76,692.11, 105,834.26 and 42,699.86 is: 58,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,692.11 : 105,834.26 = 42,699.86 : x
  2. Step 2: Convert to fraction form
    76,692.11/105,834.26 = 42,699.86/x
  3. Step 3: Cross multiply
    76,692.11x = 105,834.26 × 42,699.86
  4. Step 4: Simplify right side
    76,692.11x = 4,519,107,342.53
  5. Step 5: Solve for x
    x = 4,519,107,342.53/76,692.11
  6. Step 6: Final answer
    x = 58,925.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.