Home / 78,435.61-117,653.24-22,276.25

Finding the Fourth Proportional to 78,435.61, 117,653.24 and 22,276.25

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Solution

The fourth proportional to 78,435.61, 117,653.24 and 22,276.25 is: 33,414.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,435.61 : 117,653.24 = 22,276.25 : x
  2. Step 2: Convert to fraction form
    78,435.61/117,653.24 = 22,276.25/x
  3. Step 3: Cross multiply
    78,435.61x = 117,653.24 × 22,276.25
  4. Step 4: Simplify right side
    78,435.61x = 2,620,872,896.17
  5. Step 5: Solve for x
    x = 2,620,872,896.17/78,435.61
  6. Step 6: Final answer
    x = 33,414.33

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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.