Home / 75,822.60-113,653.86-28,406.72

Finding the Fourth Proportional to 75,822.60, 113,653.86 and 28,406.72

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Solution

The fourth proportional to 75,822.60, 113,653.86 and 28,406.72 is: 42,580.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,822.60 : 113,653.86 = 28,406.72 : x
  2. Step 2: Convert to fraction form
    75,822.60/113,653.86 = 28,406.72/x
  3. Step 3: Cross multiply
    75,822.60x = 113,653.86 × 28,406.72
  4. Step 4: Simplify right side
    75,822.60x = 3,228,532,703.14
  5. Step 5: Solve for x
    x = 3,228,532,703.14/75,822.60
  6. Step 6: Final answer
    x = 42,580.09

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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.