Home / 78,515.88-117,756.12-22,354.76

Finding the Fourth Proportional to 78,515.88, 117,756.12 and 22,354.76

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Solution

The fourth proportional to 78,515.88, 117,756.12 and 22,354.76 is: 33,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,515.88 : 117,756.12 = 22,354.76 : x
  2. Step 2: Convert to fraction form
    78,515.88/117,756.12 = 22,354.76/x
  3. Step 3: Cross multiply
    78,515.88x = 117,756.12 × 22,354.76
  4. Step 4: Simplify right side
    78,515.88x = 2,632,409,801.13
  5. Step 5: Solve for x
    x = 2,632,409,801.13/78,515.88
  6. Step 6: Final answer
    x = 33,527.10

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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.