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Finding the Fourth Proportional to 70,584.51, 97,387.60 and 40,363.60

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Solution

The fourth proportional to 70,584.51, 97,387.60 and 40,363.60 is: 55,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,584.51 : 97,387.60 = 40,363.60 : x
  2. Step 2: Convert to fraction form
    70,584.51/97,387.60 = 40,363.60/x
  3. Step 3: Cross multiply
    70,584.51x = 97,387.60 × 40,363.60
  4. Step 4: Simplify right side
    70,584.51x = 3,930,914,131.36
  5. Step 5: Solve for x
    x = 3,930,914,131.36/70,584.51
  6. Step 6: Final answer
    x = 55,690.89

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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.