Home / 78,329.79-117,346.68-60,713.37

Finding the Fourth Proportional to 78,329.79, 117,346.68 and 60,713.37

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Solution

The fourth proportional to 78,329.79, 117,346.68 and 60,713.37 is: 90,955.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,329.79 : 117,346.68 = 60,713.37 : x
  2. Step 2: Convert to fraction form
    78,329.79/117,346.68 = 60,713.37/x
  3. Step 3: Cross multiply
    78,329.79x = 117,346.68 × 60,713.37
  4. Step 4: Simplify right side
    78,329.79x = 7,124,512,401.11
  5. Step 5: Solve for x
    x = 7,124,512,401.11/78,329.79
  6. Step 6: Final answer
    x = 90,955.34

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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.