Home / 66,025.28-91,113.76-36,216.64

Finding the Fourth Proportional to 66,025.28, 91,113.76 and 36,216.64

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Solution

The fourth proportional to 66,025.28, 91,113.76 and 36,216.64 is: 49,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,025.28 : 91,113.76 = 36,216.64 : x
  2. Step 2: Convert to fraction form
    66,025.28/91,113.76 = 36,216.64/x
  3. Step 3: Cross multiply
    66,025.28x = 91,113.76 × 36,216.64
  4. Step 4: Simplify right side
    66,025.28x = 3,299,834,244.97
  5. Step 5: Solve for x
    x = 3,299,834,244.97/66,025.28
  6. Step 6: Final answer
    x = 49,978.35

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1.5x scale

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.