Home / 78,611.07-117,898.38-22,449.72

Finding the Fourth Proportional to 78,611.07, 117,898.38 and 22,449.72

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Solution

The fourth proportional to 78,611.07, 117,898.38 and 22,449.72 is: 33,669.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,611.07 : 117,898.38 = 22,449.72 : x
  2. Step 2: Convert to fraction form
    78,611.07/117,898.38 = 22,449.72/x
  3. Step 3: Cross multiply
    78,611.07x = 117,898.38 × 22,449.72
  4. Step 4: Simplify right side
    78,611.07x = 2,646,785,619.45
  5. Step 5: Solve for x
    x = 2,646,785,619.45/78,611.07
  6. Step 6: Final answer
    x = 33,669.38

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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.