Home / 76,962.35-115,234.99-39,948.59

Finding the Fourth Proportional to 76,962.35, 115,234.99 and 39,948.59

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Solution

The fourth proportional to 76,962.35, 115,234.99 and 39,948.59 is: 59,814.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,962.35 : 115,234.99 = 39,948.59 : x
  2. Step 2: Convert to fraction form
    76,962.35/115,234.99 = 39,948.59/x
  3. Step 3: Cross multiply
    76,962.35x = 115,234.99 × 39,948.59
  4. Step 4: Simplify right side
    76,962.35x = 4,603,475,369.16
  5. Step 5: Solve for x
    x = 4,603,475,369.16/76,962.35
  6. Step 6: Final answer
    x = 59,814.64

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1.5x scale

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.