Home / 78,326.39-117,490.20-22,168.32

Finding the Fourth Proportional to 78,326.39, 117,490.20 and 22,168.32

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Solution

The fourth proportional to 78,326.39, 117,490.20 and 22,168.32 is: 33,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,326.39 : 117,490.20 = 22,168.32 : x
  2. Step 2: Convert to fraction form
    78,326.39/117,490.20 = 22,168.32/x
  3. Step 3: Cross multiply
    78,326.39x = 117,490.20 × 22,168.32
  4. Step 4: Simplify right side
    78,326.39x = 2,604,559,826.74
  5. Step 5: Solve for x
    x = 2,604,559,826.74/78,326.39
  6. Step 6: Final answer
    x = 33,252.65

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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.