Home / 45,145.46-67,241.52-42,774.60

Finding the Fourth Proportional to 45,145.46, 67,241.52 and 42,774.60

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Solution

The fourth proportional to 45,145.46, 67,241.52 and 42,774.60 is: 63,710.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,145.46 : 67,241.52 = 42,774.60 : x
  2. Step 2: Convert to fraction form
    45,145.46/67,241.52 = 42,774.60/x
  3. Step 3: Cross multiply
    45,145.46x = 67,241.52 × 42,774.60
  4. Step 4: Simplify right side
    45,145.46x = 2,876,229,121.39
  5. Step 5: Solve for x
    x = 2,876,229,121.39/45,145.46
  6. Step 6: Final answer
    x = 63,710.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.