Home / 76,163.46-105,109.48-42,175.66

Finding the Fourth Proportional to 76,163.46, 105,109.48 and 42,175.66

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Solution

The fourth proportional to 76,163.46, 105,109.48 and 42,175.66 is: 58,204.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,163.46 : 105,109.48 = 42,175.66 : x
  2. Step 2: Convert to fraction form
    76,163.46/105,109.48 = 42,175.66/x
  3. Step 3: Cross multiply
    76,163.46x = 105,109.48 × 42,175.66
  4. Step 4: Simplify right side
    76,163.46x = 4,433,061,691.26
  5. Step 5: Solve for x
    x = 4,433,061,691.26/76,163.46
  6. Step 6: Final answer
    x = 58,204.57

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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.