Home / 40,740.38-61,107.80-11,158.50

Finding the Fourth Proportional to 40,740.38, 61,107.80 and 11,158.50

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Solution

The fourth proportional to 40,740.38, 61,107.80 and 11,158.50 is: 16,736.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,740.38 : 61,107.80 = 11,158.50 : x
  2. Step 2: Convert to fraction form
    40,740.38/61,107.80 = 11,158.50/x
  3. Step 3: Cross multiply
    40,740.38x = 61,107.80 × 11,158.50
  4. Step 4: Simplify right side
    40,740.38x = 681,871,330.51
  5. Step 5: Solve for x
    x = 681,871,330.51/40,740.38
  6. Step 6: Final answer
    x = 16,736.99

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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.