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Finding the Fourth Proportional to 70,404, 97,133.60 and 40,167.60

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Solution

The fourth proportional to 70,404, 97,133.60 and 40,167.60 is: 55,417.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,404 : 97,133.60 = 40,167.60 : x
  2. Step 2: Convert to fraction form
    70,404/97,133.60 = 40,167.60/x
  3. Step 3: Cross multiply
    70,404x = 97,133.60 × 40,167.60
  4. Step 4: Simplify right side
    70,404x = 3,901,623,591.36
  5. Step 5: Solve for x
    x = 3,901,623,591.36/70,404
  6. Step 6: Final answer
    x = 55,417.64

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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.