Home / 55,913.50-77,097.64-40,779.46

Finding the Fourth Proportional to 55,913.50, 77,097.64 and 40,779.46

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Solution

The fourth proportional to 55,913.50, 77,097.64 and 40,779.46 is: 56,229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,913.50 : 77,097.64 = 40,779.46 : x
  2. Step 2: Convert to fraction form
    55,913.50/77,097.64 = 40,779.46/x
  3. Step 3: Cross multiply
    55,913.50x = 77,097.64 × 40,779.46
  4. Step 4: Simplify right side
    55,913.50x = 3,143,999,537.09
  5. Step 5: Solve for x
    x = 3,143,999,537.09/55,913.50
  6. Step 6: Final answer
    x = 56,229.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.