Home / 76,497.21-105,563.90-42,504.86

Finding the Fourth Proportional to 76,497.21, 105,563.90 and 42,504.86

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Solution

The fourth proportional to 76,497.21, 105,563.90 and 42,504.86 is: 58,655.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,497.21 : 105,563.90 = 42,504.86 : x
  2. Step 2: Convert to fraction form
    76,497.21/105,563.90 = 42,504.86/x
  3. Step 3: Cross multiply
    76,497.21x = 105,563.90 × 42,504.86
  4. Step 4: Simplify right side
    76,497.21x = 4,486,978,790.55
  5. Step 5: Solve for x
    x = 4,486,978,790.55/76,497.21
  6. Step 6: Final answer
    x = 58,655.46

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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.