Home / 45,077.40-67,616.10-13,915.80

Finding the Fourth Proportional to 45,077.40, 67,616.10 and 13,915.80

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Solution

The fourth proportional to 45,077.40, 67,616.10 and 13,915.80 is: 20,873.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,077.40 : 67,616.10 = 13,915.80 : x
  2. Step 2: Convert to fraction form
    45,077.40/67,616.10 = 13,915.80/x
  3. Step 3: Cross multiply
    45,077.40x = 67,616.10 × 13,915.80
  4. Step 4: Simplify right side
    45,077.40x = 940,932,124.38
  5. Step 5: Solve for x
    x = 940,932,124.38/45,077.40
  6. Step 6: Final answer
    x = 20,873.70

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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.