Home / 51,076.88-76,615.04-13,126.12

Finding the Fourth Proportional to 51,076.88, 76,615.04 and 13,126.12

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Solution

The fourth proportional to 51,076.88, 76,615.04 and 13,126.12 is: 19,689.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,076.88 : 76,615.04 = 13,126.12 : x
  2. Step 2: Convert to fraction form
    51,076.88/76,615.04 = 13,126.12/x
  3. Step 3: Cross multiply
    51,076.88x = 76,615.04 × 13,126.12
  4. Step 4: Simplify right side
    51,076.88x = 1,005,658,208.84
  5. Step 5: Solve for x
    x = 1,005,658,208.84/51,076.88
  6. Step 6: Final answer
    x = 19,689.11

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1.5x scale

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.