Home / 45,283.77-67,915.94-28,408.65

Finding the Fourth Proportional to 45,283.77, 67,915.94 and 28,408.65

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Solution

The fourth proportional to 45,283.77, 67,915.94 and 28,408.65 is: 42,606.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,283.77 : 67,915.94 = 28,408.65 : x
  2. Step 2: Convert to fraction form
    45,283.77/67,915.94 = 28,408.65/x
  3. Step 3: Cross multiply
    45,283.77x = 67,915.94 × 28,408.65
  4. Step 4: Simplify right side
    45,283.77x = 1,929,400,026.84
  5. Step 5: Solve for x
    x = 1,929,400,026.84/45,283.77
  6. Step 6: Final answer
    x = 42,606.88

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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.