Home / 91,709.06-137,546.09-28,529.96

Finding the Fourth Proportional to 91,709.06, 137,546.09 and 28,529.96

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Solution

The fourth proportional to 91,709.06, 137,546.09 and 28,529.96 is: 42,789.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,709.06 : 137,546.09 = 28,529.96 : x
  2. Step 2: Convert to fraction form
    91,709.06/137,546.09 = 28,529.96/x
  3. Step 3: Cross multiply
    91,709.06x = 137,546.09 × 28,529.96
  4. Step 4: Simplify right side
    91,709.06x = 3,924,184,445.86
  5. Step 5: Solve for x
    x = 3,924,184,445.86/91,709.06
  6. Step 6: Final answer
    x = 42,789.50

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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.