Home / 66,684.28-91,639.43-63,600.52

Finding the Fourth Proportional to 66,684.28, 91,639.43 and 63,600.52

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Solution

The fourth proportional to 66,684.28, 91,639.43 and 63,600.52 is: 87,401.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,684.28 : 91,639.43 = 63,600.52 : x
  2. Step 2: Convert to fraction form
    66,684.28/91,639.43 = 63,600.52/x
  3. Step 3: Cross multiply
    66,684.28x = 91,639.43 × 63,600.52
  4. Step 4: Simplify right side
    66,684.28x = 5,828,315,400.50
  5. Step 5: Solve for x
    x = 5,828,315,400.50/66,684.28
  6. Step 6: Final answer
    x = 87,401.64

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.