Home / 45,895.45-68,844.87-12,618.12

Finding the Fourth Proportional to 45,895.45, 68,844.87 and 12,618.12

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Solution

The fourth proportional to 45,895.45, 68,844.87 and 12,618.12 is: 18,927.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,895.45 : 68,844.87 = 12,618.12 : x
  2. Step 2: Convert to fraction form
    45,895.45/68,844.87 = 12,618.12/x
  3. Step 3: Cross multiply
    45,895.45x = 68,844.87 × 12,618.12
  4. Step 4: Simplify right side
    45,895.45x = 868,692,831.04
  5. Step 5: Solve for x
    x = 868,692,831.04/45,895.45
  6. Step 6: Final answer
    x = 18,927.65

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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.