Home / 75,030.20-112,420.35-52,796.86

Finding the Fourth Proportional to 75,030.20, 112,420.35 and 52,796.86

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Solution

The fourth proportional to 75,030.20, 112,420.35 and 52,796.86 is: 79,107.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,030.20 : 112,420.35 = 52,796.86 : x
  2. Step 2: Convert to fraction form
    75,030.20/112,420.35 = 52,796.86/x
  3. Step 3: Cross multiply
    75,030.20x = 112,420.35 × 52,796.86
  4. Step 4: Simplify right side
    75,030.20x = 5,935,441,480.10
  5. Step 5: Solve for x
    x = 5,935,441,480.10/75,030.20
  6. Step 6: Final answer
    x = 79,107.37

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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.