Home / 46,542.89-69,690.39-31,780.64

Finding the Fourth Proportional to 46,542.89, 69,690.39 and 31,780.64

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Solution

The fourth proportional to 46,542.89, 69,690.39 and 31,780.64 is: 47,586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,542.89 : 69,690.39 = 31,780.64 : x
  2. Step 2: Convert to fraction form
    46,542.89/69,690.39 = 31,780.64/x
  3. Step 3: Cross multiply
    46,542.89x = 69,690.39 × 31,780.64
  4. Step 4: Simplify right side
    46,542.89x = 2,214,804,847.60
  5. Step 5: Solve for x
    x = 2,214,804,847.60/46,542.89
  6. Step 6: Final answer
    x = 47,586.32

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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.