Home / 49,782.56-74,671.40-18,615.38

Finding the Fourth Proportional to 49,782.56, 74,671.40 and 18,615.38

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Solution

The fourth proportional to 49,782.56, 74,671.40 and 18,615.38 is: 27,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,782.56 : 74,671.40 = 18,615.38 : x
  2. Step 2: Convert to fraction form
    49,782.56/74,671.40 = 18,615.38/x
  3. Step 3: Cross multiply
    49,782.56x = 74,671.40 × 18,615.38
  4. Step 4: Simplify right side
    49,782.56x = 1,390,036,159.31
  5. Step 5: Solve for x
    x = 1,390,036,159.31/49,782.56
  6. Step 6: Final answer
    x = 27,922.15

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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.