Home / 78,389.08-117,525.30-34,007.56

Finding the Fourth Proportional to 78,389.08, 117,525.30 and 34,007.56

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Solution

The fourth proportional to 78,389.08, 117,525.30 and 34,007.56 is: 50,986.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,389.08 : 117,525.30 = 34,007.56 : x
  2. Step 2: Convert to fraction form
    78,389.08/117,525.30 = 34,007.56/x
  3. Step 3: Cross multiply
    78,389.08x = 117,525.30 × 34,007.56
  4. Step 4: Simplify right side
    78,389.08x = 3,996,748,691.27
  5. Step 5: Solve for x
    x = 3,996,748,691.27/78,389.08
  6. Step 6: Final answer
    x = 50,986.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.