Home / 45,185.76-67,779.54-31,804.02

Finding the Fourth Proportional to 45,185.76, 67,779.54 and 31,804.02

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Solution

The fourth proportional to 45,185.76, 67,779.54 and 31,804.02 is: 47,706.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,185.76 : 67,779.54 = 31,804.02 : x
  2. Step 2: Convert to fraction form
    45,185.76/67,779.54 = 31,804.02/x
  3. Step 3: Cross multiply
    45,185.76x = 67,779.54 × 31,804.02
  4. Step 4: Simplify right side
    45,185.76x = 2,155,661,845.75
  5. Step 5: Solve for x
    x = 2,155,661,845.75/45,185.76
  6. Step 6: Final answer
    x = 47,706.66

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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.