Home / 45,122.28-67,681.32-11,841.60

Finding the Fourth Proportional to 45,122.28, 67,681.32 and 11,841.60

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Solution

The fourth proportional to 45,122.28, 67,681.32 and 11,841.60 is: 17,761.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,122.28 : 67,681.32 = 11,841.60 : x
  2. Step 2: Convert to fraction form
    45,122.28/67,681.32 = 11,841.60/x
  3. Step 3: Cross multiply
    45,122.28x = 67,681.32 × 11,841.60
  4. Step 4: Simplify right side
    45,122.28x = 801,455,118.91
  5. Step 5: Solve for x
    x = 801,455,118.91/45,122.28
  6. Step 6: Final answer
    x = 17,761.85

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1.5x scale

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.