Home / 76,454.21-105,500.79-42,459.44

Finding the Fourth Proportional to 76,454.21, 105,500.79 and 42,459.44

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Solution

The fourth proportional to 76,454.21, 105,500.79 and 42,459.44 is: 58,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,454.21 : 105,500.79 = 42,459.44 : x
  2. Step 2: Convert to fraction form
    76,454.21/105,500.79 = 42,459.44/x
  3. Step 3: Cross multiply
    76,454.21x = 105,500.79 × 42,459.44
  4. Step 4: Simplify right side
    76,454.21x = 4,479,504,462.96
  5. Step 5: Solve for x
    x = 4,479,504,462.96/76,454.21
  6. Step 6: Final answer
    x = 58,590.68

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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.