Home / 75,732.80-113,526.75-28,335.02

Finding the Fourth Proportional to 75,732.80, 113,526.75 and 28,335.02

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Solution

The fourth proportional to 75,732.80, 113,526.75 and 28,335.02 is: 42,475.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,732.80 : 113,526.75 = 28,335.02 : x
  2. Step 2: Convert to fraction form
    75,732.80/113,526.75 = 28,335.02/x
  3. Step 3: Cross multiply
    75,732.80x = 113,526.75 × 28,335.02
  4. Step 4: Simplify right side
    75,732.80x = 3,216,782,731.79
  5. Step 5: Solve for x
    x = 3,216,782,731.79/75,732.80
  6. Step 6: Final answer
    x = 42,475.42

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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.