Home / 78,403.44-117,623.40-25,813.38

Finding the Fourth Proportional to 78,403.44, 117,623.40 and 25,813.38

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Solution

The fourth proportional to 78,403.44, 117,623.40 and 25,813.38 is: 38,726.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,403.44 : 117,623.40 = 25,813.38 : x
  2. Step 2: Convert to fraction form
    78,403.44/117,623.40 = 25,813.38/x
  3. Step 3: Cross multiply
    78,403.44x = 117,623.40 × 25,813.38
  4. Step 4: Simplify right side
    78,403.44x = 3,036,257,521.09
  5. Step 5: Solve for x
    x = 3,036,257,521.09/78,403.44
  6. Step 6: Final answer
    x = 38,726.08

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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.