Home / 40,757.31-61,133.00-11,172.81

Finding the Fourth Proportional to 40,757.31, 61,133.00 and 11,172.81

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Solution

The fourth proportional to 40,757.31, 61,133.00 and 11,172.81 is: 16,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,757.31 : 61,133.00 = 11,172.81 : x
  2. Step 2: Convert to fraction form
    40,757.31/61,133.00 = 11,172.81/x
  3. Step 3: Cross multiply
    40,757.31x = 61,133.00 × 11,172.81
  4. Step 4: Simplify right side
    40,757.31x = 683,027,337.87
  5. Step 5: Solve for x
    x = 683,027,337.87/40,757.31
  6. Step 6: Final answer
    x = 16,758.40

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1.5x scale

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.