Home / 76,767.65-105,936.66-42,774.38

Finding the Fourth Proportional to 76,767.65, 105,936.66 and 42,774.38

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Solution

The fourth proportional to 76,767.65, 105,936.66 and 42,774.38 is: 59,027.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,767.65 : 105,936.66 = 42,774.38 : x
  2. Step 2: Convert to fraction form
    76,767.65/105,936.66 = 42,774.38/x
  3. Step 3: Cross multiply
    76,767.65x = 105,936.66 × 42,774.38
  4. Step 4: Simplify right side
    76,767.65x = 4,531,374,818.35
  5. Step 5: Solve for x
    x = 4,531,374,818.35/76,767.65
  6. Step 6: Final answer
    x = 59,027.14

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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.