Home / 49,907.16-74,871.90-18,742.68

Finding the Fourth Proportional to 49,907.16, 74,871.90 and 18,742.68

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Solution

The fourth proportional to 49,907.16, 74,871.90 and 18,742.68 is: 28,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,907.16 : 74,871.90 = 18,742.68 : x
  2. Step 2: Convert to fraction form
    49,907.16/74,871.90 = 18,742.68/x
  3. Step 3: Cross multiply
    49,907.16x = 74,871.90 × 18,742.68
  4. Step 4: Simplify right side
    49,907.16x = 1,403,300,062.69
  5. Step 5: Solve for x
    x = 1,403,300,062.69/49,907.16
  6. Step 6: Final answer
    x = 28,118.21

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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.