Home / 40,694.04-61,043.81-11,109.40

Finding the Fourth Proportional to 40,694.04, 61,043.81 and 11,109.40

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Solution

The fourth proportional to 40,694.04, 61,043.81 and 11,109.40 is: 16,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,694.04 : 61,043.81 = 11,109.40 : x
  2. Step 2: Convert to fraction form
    40,694.04/61,043.81 = 11,109.40/x
  3. Step 3: Cross multiply
    40,694.04x = 61,043.81 × 11,109.40
  4. Step 4: Simplify right side
    40,694.04x = 678,159,894.66
  5. Step 5: Solve for x
    x = 678,159,894.66/40,694.04
  6. Step 6: Final answer
    x = 16,664.85

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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.