Home / 71,824.56-107,636-56,765.48

Finding the Fourth Proportional to 71,824.56, 107,636 and 56,765.48

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Solution

The fourth proportional to 71,824.56, 107,636 and 56,765.48 is: 85,068.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,824.56 : 107,636 = 56,765.48 : x
  2. Step 2: Convert to fraction form
    71,824.56/107,636 = 56,765.48/x
  3. Step 3: Cross multiply
    71,824.56x = 107,636 × 56,765.48
  4. Step 4: Simplify right side
    71,824.56x = 6,110,009,205.28
  5. Step 5: Solve for x
    x = 6,110,009,205.28/71,824.56
  6. Step 6: Final answer
    x = 85,068.52

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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.