Home / 51,765.24-71,440.59-30,540.36

Finding the Fourth Proportional to 51,765.24, 71,440.59 and 30,540.36

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Solution

The fourth proportional to 51,765.24, 71,440.59 and 30,540.36 is: 42,148.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,765.24 : 71,440.59 = 30,540.36 : x
  2. Step 2: Convert to fraction form
    51,765.24/71,440.59 = 30,540.36/x
  3. Step 3: Cross multiply
    51,765.24x = 71,440.59 × 30,540.36
  4. Step 4: Simplify right side
    51,765.24x = 2,181,821,337.21
  5. Step 5: Solve for x
    x = 2,181,821,337.21/51,765.24
  6. Step 6: Final answer
    x = 42,148.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.