Home / 72,989.28-109,533.60-26,246.88

Finding the Fourth Proportional to 72,989.28, 109,533.60 and 26,246.88

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Solution

The fourth proportional to 72,989.28, 109,533.60 and 26,246.88 is: 39,388.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,989.28 : 109,533.60 = 26,246.88 : x
  2. Step 2: Convert to fraction form
    72,989.28/109,533.60 = 26,246.88/x
  3. Step 3: Cross multiply
    72,989.28x = 109,533.60 × 26,246.88
  4. Step 4: Simplify right side
    72,989.28x = 2,874,915,255.17
  5. Step 5: Solve for x
    x = 2,874,915,255.17/72,989.28
  6. Step 6: Final answer
    x = 39,388.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.