Home / 78,322.85-117,504.32-36,233.12

Finding the Fourth Proportional to 78,322.85, 117,504.32 and 36,233.12

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Solution

The fourth proportional to 78,322.85, 117,504.32 and 36,233.12 is: 54,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,322.85 : 117,504.32 = 36,233.12 : x
  2. Step 2: Convert to fraction form
    78,322.85/117,504.32 = 36,233.12/x
  3. Step 3: Cross multiply
    78,322.85x = 117,504.32 × 36,233.12
  4. Step 4: Simplify right side
    78,322.85x = 4,257,548,443.48
  5. Step 5: Solve for x
    x = 4,257,548,443.48/78,322.85
  6. Step 6: Final answer
    x = 54,358.96

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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.