Home / 75,320.64-113,010.72-28,585.92

Finding the Fourth Proportional to 75,320.64, 113,010.72 and 28,585.92

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Solution

The fourth proportional to 75,320.64, 113,010.72 and 28,585.92 is: 42,890.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,320.64 : 113,010.72 = 28,585.92 : x
  2. Step 2: Convert to fraction form
    75,320.64/113,010.72 = 28,585.92/x
  3. Step 3: Cross multiply
    75,320.64x = 113,010.72 × 28,585.92
  4. Step 4: Simplify right side
    75,320.64x = 3,230,515,401.06
  5. Step 5: Solve for x
    x = 3,230,515,401.06/75,320.64
  6. Step 6: Final answer
    x = 42,890.17

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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.