Home / 51,201.32-76,885.34-31,604.45

Finding the Fourth Proportional to 51,201.32, 76,885.34 and 31,604.45

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Solution

The fourth proportional to 51,201.32, 76,885.34 and 31,604.45 is: 47,458.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,201.32 : 76,885.34 = 31,604.45 : x
  2. Step 2: Convert to fraction form
    51,201.32/76,885.34 = 31,604.45/x
  3. Step 3: Cross multiply
    51,201.32x = 76,885.34 × 31,604.45
  4. Step 4: Simplify right side
    51,201.32x = 2,429,918,341.31
  5. Step 5: Solve for x
    x = 2,429,918,341.31/51,201.32
  6. Step 6: Final answer
    x = 47,458.12

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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.