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Finding the Fourth Proportional to 60,308.40, 90,388.20 and 43,725.36

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Solution

The fourth proportional to 60,308.40, 90,388.20 and 43,725.36 is: 65,534.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,308.40 : 90,388.20 = 43,725.36 : x
  2. Step 2: Convert to fraction form
    60,308.40/90,388.20 = 43,725.36/x
  3. Step 3: Cross multiply
    60,308.40x = 90,388.20 × 43,725.36
  4. Step 4: Simplify right side
    60,308.40x = 3,952,256,584.75
  5. Step 5: Solve for x
    x = 3,952,256,584.75/60,308.40
  6. Step 6: Final answer
    x = 65,534.10

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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.