Home / 66,877.20-92,320.25-42,709.82

Finding the Fourth Proportional to 66,877.20, 92,320.25 and 42,709.82

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Solution

The fourth proportional to 66,877.20, 92,320.25 and 42,709.82 is: 58,958.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,877.20 : 92,320.25 = 42,709.82 : x
  2. Step 2: Convert to fraction form
    66,877.20/92,320.25 = 42,709.82/x
  3. Step 3: Cross multiply
    66,877.20x = 92,320.25 × 42,709.82
  4. Step 4: Simplify right side
    66,877.20x = 3,942,980,584.70
  5. Step 5: Solve for x
    x = 3,942,980,584.70/66,877.20
  6. Step 6: Final answer
    x = 58,958.52

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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.