Home / 40,758.12-61,133.09-11,178.93

Finding the Fourth Proportional to 40,758.12, 61,133.09 and 11,178.93

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Solution

The fourth proportional to 40,758.12, 61,133.09 and 11,178.93 is: 16,767.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,758.12 : 61,133.09 = 11,178.93 : x
  2. Step 2: Convert to fraction form
    40,758.12/61,133.09 = 11,178.93/x
  3. Step 3: Cross multiply
    40,758.12x = 61,133.09 × 11,178.93
  4. Step 4: Simplify right side
    40,758.12x = 683,402,477.90
  5. Step 5: Solve for x
    x = 683,402,477.90/40,758.12
  6. Step 6: Final answer
    x = 16,767.27

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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.