Home / 42,458.80-63,627.84-31,277.56

Finding the Fourth Proportional to 42,458.80, 63,627.84 and 31,277.56

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Solution

The fourth proportional to 42,458.80, 63,627.84 and 31,277.56 is: 46,871.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,458.80 : 63,627.84 = 31,277.56 : x
  2. Step 2: Convert to fraction form
    42,458.80/63,627.84 = 31,277.56/x
  3. Step 3: Cross multiply
    42,458.80x = 63,627.84 × 31,277.56
  4. Step 4: Simplify right side
    42,458.80x = 1,990,123,583.27
  5. Step 5: Solve for x
    x = 1,990,123,583.27/42,458.80
  6. Step 6: Final answer
    x = 46,871.88

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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.