Home / 75,298.20-112,891.10-45,305.40

Finding the Fourth Proportional to 75,298.20, 112,891.10 and 45,305.40

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Solution

The fourth proportional to 75,298.20, 112,891.10 and 45,305.40 is: 67,924.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,298.20 : 112,891.10 = 45,305.40 : x
  2. Step 2: Convert to fraction form
    75,298.20/112,891.10 = 45,305.40/x
  3. Step 3: Cross multiply
    75,298.20x = 112,891.10 × 45,305.40
  4. Step 4: Simplify right side
    75,298.20x = 5,114,576,441.94
  5. Step 5: Solve for x
    x = 5,114,576,441.94/75,298.20
  6. Step 6: Final answer
    x = 67,924.29

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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.