Home / 76,211.04-105,198.86-62,039.28

Finding the Fourth Proportional to 76,211.04, 105,198.86 and 62,039.28

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Solution

The fourth proportional to 76,211.04, 105,198.86 and 62,039.28 is: 85,636.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,211.04 : 105,198.86 = 62,039.28 : x
  2. Step 2: Convert to fraction form
    76,211.04/105,198.86 = 62,039.28/x
  3. Step 3: Cross multiply
    76,211.04x = 105,198.86 × 62,039.28
  4. Step 4: Simplify right side
    76,211.04x = 6,526,461,531.22
  5. Step 5: Solve for x
    x = 6,526,461,531.22/76,211.04
  6. Step 6: Final answer
    x = 85,636.69

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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.