Home / 75,725.46-113,442.48-42,344.28

Finding the Fourth Proportional to 75,725.46, 113,442.48 and 42,344.28

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Solution

The fourth proportional to 75,725.46, 113,442.48 and 42,344.28 is: 63,434.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,725.46 : 113,442.48 = 42,344.28 : x
  2. Step 2: Convert to fraction form
    75,725.46/113,442.48 = 42,344.28/x
  3. Step 3: Cross multiply
    75,725.46x = 113,442.48 × 42,344.28
  4. Step 4: Simplify right side
    75,725.46x = 4,803,640,137.01
  5. Step 5: Solve for x
    x = 4,803,640,137.01/75,725.46
  6. Step 6: Final answer
    x = 63,434.94

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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.