Home / 75,263.89-112,729.28-30,755.61

Finding the Fourth Proportional to 75,263.89, 112,729.28 and 30,755.61

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Solution

The fourth proportional to 75,263.89, 112,729.28 and 30,755.61 is: 46,065.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,263.89 : 112,729.28 = 30,755.61 : x
  2. Step 2: Convert to fraction form
    75,263.89/112,729.28 = 30,755.61/x
  3. Step 3: Cross multiply
    75,263.89x = 112,729.28 × 30,755.61
  4. Step 4: Simplify right side
    75,263.89x = 3,467,057,771.26
  5. Step 5: Solve for x
    x = 3,467,057,771.26/75,263.89
  6. Step 6: Final answer
    x = 46,065.35

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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.