Home / 51,383.18-77,079.90-13,943.86

Finding the Fourth Proportional to 51,383.18, 77,079.90 and 13,943.86

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Solution

The fourth proportional to 51,383.18, 77,079.90 and 13,943.86 is: 20,917.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,383.18 : 77,079.90 = 13,943.86 : x
  2. Step 2: Convert to fraction form
    51,383.18/77,079.90 = 13,943.86/x
  3. Step 3: Cross multiply
    51,383.18x = 77,079.90 × 13,943.86
  4. Step 4: Simplify right side
    51,383.18x = 1,074,791,334.41
  5. Step 5: Solve for x
    x = 1,074,791,334.41/51,383.18
  6. Step 6: Final answer
    x = 20,917.18

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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.