Home / 75,840.43-113,780.69-25,920.33

Finding the Fourth Proportional to 75,840.43, 113,780.69 and 25,920.33

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Solution

The fourth proportional to 75,840.43, 113,780.69 and 25,920.33 is: 38,887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,840.43 : 113,780.69 = 25,920.33 : x
  2. Step 2: Convert to fraction form
    75,840.43/113,780.69 = 25,920.33/x
  3. Step 3: Cross multiply
    75,840.43x = 113,780.69 × 25,920.33
  4. Step 4: Simplify right side
    75,840.43x = 2,949,233,032.43
  5. Step 5: Solve for x
    x = 2,949,233,032.43/75,840.43
  6. Step 6: Final answer
    x = 38,887.35

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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.