Home / 66,077.41-91,164.63-42,218.05

Finding the Fourth Proportional to 66,077.41, 91,164.63 and 42,218.05

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Solution

The fourth proportional to 66,077.41, 91,164.63 and 42,218.05 is: 58,246.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,077.41 : 91,164.63 = 42,218.05 : x
  2. Step 2: Convert to fraction form
    66,077.41/91,164.63 = 42,218.05/x
  3. Step 3: Cross multiply
    66,077.41x = 91,164.63 × 42,218.05
  4. Step 4: Simplify right side
    66,077.41x = 3,848,792,890.17
  5. Step 5: Solve for x
    x = 3,848,792,890.17/66,077.41
  6. Step 6: Final answer
    x = 58,246.73

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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.