Home / 97,428.42-134,542.08-71,709.30

Finding the Fourth Proportional to 97,428.42, 134,542.08 and 71,709.30

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Solution

The fourth proportional to 97,428.42, 134,542.08 and 71,709.30 is: 99,025.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,428.42 : 134,542.08 = 71,709.30 : x
  2. Step 2: Convert to fraction form
    97,428.42/134,542.08 = 71,709.30/x
  3. Step 3: Cross multiply
    97,428.42x = 134,542.08 × 71,709.30
  4. Step 4: Simplify right side
    97,428.42x = 9,647,918,377.34
  5. Step 5: Solve for x
    x = 9,647,918,377.34/97,428.42
  6. Step 6: Final answer
    x = 99,025.71

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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.