Home / 40,811.10-61,179.75-14,509.70

Finding the Fourth Proportional to 40,811.10, 61,179.75 and 14,509.70

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Solution

The fourth proportional to 40,811.10, 61,179.75 and 14,509.70 is: 21,751.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,811.10 : 61,179.75 = 14,509.70 : x
  2. Step 2: Convert to fraction form
    40,811.10/61,179.75 = 14,509.70/x
  3. Step 3: Cross multiply
    40,811.10x = 61,179.75 × 14,509.70
  4. Step 4: Simplify right side
    40,811.10x = 887,699,818.58
  5. Step 5: Solve for x
    x = 887,699,818.58/40,811.10
  6. Step 6: Final answer
    x = 21,751.43

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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.