Home / 76,181.63-105,148.14-50,689.06

Finding the Fourth Proportional to 76,181.63, 105,148.14 and 50,689.06

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Solution

The fourth proportional to 76,181.63, 105,148.14 and 50,689.06 is: 69,962.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,181.63 : 105,148.14 = 50,689.06 : x
  2. Step 2: Convert to fraction form
    76,181.63/105,148.14 = 50,689.06/x
  3. Step 3: Cross multiply
    76,181.63x = 105,148.14 × 50,689.06
  4. Step 4: Simplify right side
    76,181.63x = 5,329,860,377.35
  5. Step 5: Solve for x
    x = 5,329,860,377.35/76,181.63
  6. Step 6: Final answer
    x = 69,962.54

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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.