Home / 77,986.72-116,979.90-25,396.12

Finding the Fourth Proportional to 77,986.72, 116,979.90 and 25,396.12

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Solution

The fourth proportional to 77,986.72, 116,979.90 and 25,396.12 is: 38,094.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,986.72 : 116,979.90 = 25,396.12 : x
  2. Step 2: Convert to fraction form
    77,986.72/116,979.90 = 25,396.12/x
  3. Step 3: Cross multiply
    77,986.72x = 116,979.90 × 25,396.12
  4. Step 4: Simplify right side
    77,986.72x = 2,970,835,577.99
  5. Step 5: Solve for x
    x = 2,970,835,577.99/77,986.72
  6. Step 6: Final answer
    x = 38,094.12

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1.5x scale

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.