Home / 78,505.09-117,758.99-22,346.64

Finding the Fourth Proportional to 78,505.09, 117,758.99 and 22,346.64

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Solution

The fourth proportional to 78,505.09, 117,758.99 and 22,346.64 is: 33,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,505.09 : 117,758.99 = 22,346.64 : x
  2. Step 2: Convert to fraction form
    78,505.09/117,758.99 = 22,346.64/x
  3. Step 3: Cross multiply
    78,505.09x = 117,758.99 × 22,346.64
  4. Step 4: Simplify right side
    78,505.09x = 2,631,517,812.16
  5. Step 5: Solve for x
    x = 2,631,517,812.16/78,505.09
  6. Step 6: Final answer
    x = 33,520.35

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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.