Home / 92,776.39-139,145.45-45,342.79

Finding the Fourth Proportional to 92,776.39, 139,145.45 and 45,342.79

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Solution

The fourth proportional to 92,776.39, 139,145.45 and 45,342.79 is: 68,004.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,776.39 : 139,145.45 = 45,342.79 : x
  2. Step 2: Convert to fraction form
    92,776.39/139,145.45 = 45,342.79/x
  3. Step 3: Cross multiply
    92,776.39x = 139,145.45 × 45,342.79
  4. Step 4: Simplify right side
    92,776.39x = 6,309,242,692.09
  5. Step 5: Solve for x
    x = 6,309,242,692.09/92,776.39
  6. Step 6: Final answer
    x = 68,004.83

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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.