Home / 66,786.12-92,112.66-42,914.88

Finding the Fourth Proportional to 66,786.12, 92,112.66 and 42,914.88

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Solution

The fourth proportional to 66,786.12, 92,112.66 and 42,914.88 is: 59,189.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,786.12 : 92,112.66 = 42,914.88 : x
  2. Step 2: Convert to fraction form
    66,786.12/92,112.66 = 42,914.88/x
  3. Step 3: Cross multiply
    66,786.12x = 92,112.66 × 42,914.88
  4. Step 4: Simplify right side
    66,786.12x = 3,953,003,750.38
  5. Step 5: Solve for x
    x = 3,953,003,750.38/66,786.12
  6. Step 6: Final answer
    x = 59,189.00

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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.