Home / 77,979.28-116,941.32-25,378.96

Finding the Fourth Proportional to 77,979.28, 116,941.32 and 25,378.96

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Solution

The fourth proportional to 77,979.28, 116,941.32 and 25,378.96 is: 38,059.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,979.28 : 116,941.32 = 25,378.96 : x
  2. Step 2: Convert to fraction form
    77,979.28/116,941.32 = 25,378.96/x
  3. Step 3: Cross multiply
    77,979.28x = 116,941.32 × 25,378.96
  4. Step 4: Simplify right side
    77,979.28x = 2,967,849,082.63
  5. Step 5: Solve for x
    x = 2,967,849,082.63/77,979.28
  6. Step 6: Final answer
    x = 38,059.46

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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.