Home / 51,203.89-76,840.67-31,422.07

Finding the Fourth Proportional to 51,203.89, 76,840.67 and 31,422.07

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Solution

The fourth proportional to 51,203.89, 76,840.67 and 31,422.07 is: 47,154.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,203.89 : 76,840.67 = 31,422.07 : x
  2. Step 2: Convert to fraction form
    51,203.89/76,840.67 = 31,422.07/x
  3. Step 3: Cross multiply
    51,203.89x = 76,840.67 × 31,422.07
  4. Step 4: Simplify right side
    51,203.89x = 2,414,492,911.59
  5. Step 5: Solve for x
    x = 2,414,492,911.59/51,203.89
  6. Step 6: Final answer
    x = 47,154.48

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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.