Home / 70,743.25-97,639.55-40,548.81

Finding the Fourth Proportional to 70,743.25, 97,639.55 and 40,548.81

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Solution

The fourth proportional to 70,743.25, 97,639.55 and 40,548.81 is: 55,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,743.25 : 97,639.55 = 40,548.81 : x
  2. Step 2: Convert to fraction form
    70,743.25/97,639.55 = 40,548.81/x
  3. Step 3: Cross multiply
    70,743.25x = 97,639.55 × 40,548.81
  4. Step 4: Simplify right side
    70,743.25x = 3,959,167,561.44
  5. Step 5: Solve for x
    x = 3,959,167,561.44/70,743.25
  6. Step 6: Final answer
    x = 55,965.30

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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.