Home / 76,214.25-105,175.46-42,222.80

Finding the Fourth Proportional to 76,214.25, 105,175.46 and 42,222.80

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Solution

The fourth proportional to 76,214.25, 105,175.46 and 42,222.80 is: 58,267.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,214.25 : 105,175.46 = 42,222.80 : x
  2. Step 2: Convert to fraction form
    76,214.25/105,175.46 = 42,222.80/x
  3. Step 3: Cross multiply
    76,214.25x = 105,175.46 × 42,222.80
  4. Step 4: Simplify right side
    76,214.25x = 4,440,802,780.98
  5. Step 5: Solve for x
    x = 4,440,802,780.98/76,214.25
  6. Step 6: Final answer
    x = 58,267.36

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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.