Home / 45,283.52-67,915.56-28,408.40

Finding the Fourth Proportional to 45,283.52, 67,915.56 and 28,408.40

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Solution

The fourth proportional to 45,283.52, 67,915.56 and 28,408.40 is: 42,606.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,283.52 : 67,915.56 = 28,408.40 : x
  2. Step 2: Convert to fraction form
    45,283.52/67,915.56 = 28,408.40/x
  3. Step 3: Cross multiply
    45,283.52x = 67,915.56 × 28,408.40
  4. Step 4: Simplify right side
    45,283.52x = 1,929,372,394.70
  5. Step 5: Solve for x
    x = 1,929,372,394.70/45,283.52
  6. Step 6: Final answer
    x = 42,606.50

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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.