Home / 78,406.04-117,842.32-36,882.20

Finding the Fourth Proportional to 78,406.04, 117,842.32 and 36,882.20

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Solution

The fourth proportional to 78,406.04, 117,842.32 and 36,882.20 is: 55,433.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,406.04 : 117,842.32 = 36,882.20 : x
  2. Step 2: Convert to fraction form
    78,406.04/117,842.32 = 36,882.20/x
  3. Step 3: Cross multiply
    78,406.04x = 117,842.32 × 36,882.20
  4. Step 4: Simplify right side
    78,406.04x = 4,346,284,014.70
  5. Step 5: Solve for x
    x = 4,346,284,014.70/78,406.04
  6. Step 6: Final answer
    x = 55,433.03

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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.