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Finding the Fourth Proportional to 97,653.61, 134,760.81 and 57,371.05

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Solution

The fourth proportional to 97,653.61, 134,760.81 and 57,371.05 is: 79,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,653.61 : 134,760.81 = 57,371.05 : x
  2. Step 2: Convert to fraction form
    97,653.61/134,760.81 = 57,371.05/x
  3. Step 3: Cross multiply
    97,653.61x = 134,760.81 × 57,371.05
  4. Step 4: Simplify right side
    97,653.61x = 7,731,369,168.55
  5. Step 5: Solve for x
    x = 7,731,369,168.55/97,653.61
  6. Step 6: Final answer
    x = 79,171.36

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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.