Home / 66,137.28-91,219.42-45,984.07

Finding the Fourth Proportional to 66,137.28, 91,219.42 and 45,984.07

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Solution

The fourth proportional to 66,137.28, 91,219.42 and 45,984.07 is: 63,423.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,137.28 : 91,219.42 = 45,984.07 : x
  2. Step 2: Convert to fraction form
    66,137.28/91,219.42 = 45,984.07/x
  3. Step 3: Cross multiply
    66,137.28x = 91,219.42 × 45,984.07
  4. Step 4: Simplify right side
    66,137.28x = 4,194,640,366.14
  5. Step 5: Solve for x
    x = 4,194,640,366.14/66,137.28
  6. Step 6: Final answer
    x = 63,423.24

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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.