Home / 78,628.12-117,960.40-22,468.96

Finding the Fourth Proportional to 78,628.12, 117,960.40 and 22,468.96

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Solution

The fourth proportional to 78,628.12, 117,960.40 and 22,468.96 is: 33,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,628.12 : 117,960.40 = 22,468.96 : x
  2. Step 2: Convert to fraction form
    78,628.12/117,960.40 = 22,468.96/x
  3. Step 3: Cross multiply
    78,628.12x = 117,960.40 × 22,468.96
  4. Step 4: Simplify right side
    78,628.12x = 2,650,447,509.18
  5. Step 5: Solve for x
    x = 2,650,447,509.18/78,628.12
  6. Step 6: Final answer
    x = 33,708.65

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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.