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Finding the Fourth Proportional to 74,998.80, 112,499.40 and 19,594.80

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Solution

The fourth proportional to 74,998.80, 112,499.40 and 19,594.80 is: 29,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,998.80 : 112,499.40 = 19,594.80 : x
  2. Step 2: Convert to fraction form
    74,998.80/112,499.40 = 19,594.80/x
  3. Step 3: Cross multiply
    74,998.80x = 112,499.40 × 19,594.80
  4. Step 4: Simplify right side
    74,998.80x = 2,204,403,243.12
  5. Step 5: Solve for x
    x = 2,204,403,243.12/74,998.80
  6. Step 6: Final answer
    x = 29,392.51

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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.