Home / 40,770.81-61,156.25-11,188.87

Finding the Fourth Proportional to 40,770.81, 61,156.25 and 11,188.87

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Solution

The fourth proportional to 40,770.81, 61,156.25 and 11,188.87 is: 16,783.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,770.81 : 61,156.25 = 11,188.87 : x
  2. Step 2: Convert to fraction form
    40,770.81/61,156.25 = 11,188.87/x
  3. Step 3: Cross multiply
    40,770.81x = 61,156.25 × 11,188.87
  4. Step 4: Simplify right side
    40,770.81x = 684,269,164.06
  5. Step 5: Solve for x
    x = 684,269,164.06/40,770.81
  6. Step 6: Final answer
    x = 16,783.31

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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.