Home / 51,181.95-76,784.15-15,646.21

Finding the Fourth Proportional to 51,181.95, 76,784.15 and 15,646.21

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Solution

The fourth proportional to 51,181.95, 76,784.15 and 15,646.21 is: 23,472.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,181.95 : 76,784.15 = 15,646.21 : x
  2. Step 2: Convert to fraction form
    51,181.95/76,784.15 = 15,646.21/x
  3. Step 3: Cross multiply
    51,181.95x = 76,784.15 × 15,646.21
  4. Step 4: Simplify right side
    51,181.95x = 1,201,380,935.57
  5. Step 5: Solve for x
    x = 1,201,380,935.57/51,181.95
  6. Step 6: Final answer
    x = 23,472.75

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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.