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Finding the Fourth Proportional to 45,630.95, 68,279.90 and 26,919.95

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Solution

The fourth proportional to 45,630.95, 68,279.90 and 26,919.95 is: 40,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,630.95 : 68,279.90 = 26,919.95 : x
  2. Step 2: Convert to fraction form
    45,630.95/68,279.90 = 26,919.95/x
  3. Step 3: Cross multiply
    45,630.95x = 68,279.90 × 26,919.95
  4. Step 4: Simplify right side
    45,630.95x = 1,838,091,018.01
  5. Step 5: Solve for x
    x = 1,838,091,018.01/45,630.95
  6. Step 6: Final answer
    x = 40,281.68

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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.