Home / 75,921.15-113,950.83-40,412.28

Finding the Fourth Proportional to 75,921.15, 113,950.83 and 40,412.28

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Solution

The fourth proportional to 75,921.15, 113,950.83 and 40,412.28 is: 60,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,921.15 : 113,950.83 = 40,412.28 : x
  2. Step 2: Convert to fraction form
    75,921.15/113,950.83 = 40,412.28/x
  3. Step 3: Cross multiply
    75,921.15x = 113,950.83 × 40,412.28
  4. Step 4: Simplify right side
    75,921.15x = 4,605,012,848.19
  5. Step 5: Solve for x
    x = 4,605,012,848.19/75,921.15
  6. Step 6: Final answer
    x = 60,655.20

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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.