Home / 40,870.86-61,305.84-28,813.38

Finding the Fourth Proportional to 40,870.86, 61,305.84 and 28,813.38

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Solution

The fourth proportional to 40,870.86, 61,305.84 and 28,813.38 is: 43,219.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,870.86 : 61,305.84 = 28,813.38 : x
  2. Step 2: Convert to fraction form
    40,870.86/61,305.84 = 28,813.38/x
  3. Step 3: Cross multiply
    40,870.86x = 61,305.84 × 28,813.38
  4. Step 4: Simplify right side
    40,870.86x = 1,766,428,464.14
  5. Step 5: Solve for x
    x = 1,766,428,464.14/40,870.86
  6. Step 6: Final answer
    x = 43,219.75

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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.