Home / 45,347.18-68,043.81-20,382.20

Finding the Fourth Proportional to 45,347.18, 68,043.81 and 20,382.20

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Solution

The fourth proportional to 45,347.18, 68,043.81 and 20,382.20 is: 30,583.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,347.18 : 68,043.81 = 20,382.20 : x
  2. Step 2: Convert to fraction form
    45,347.18/68,043.81 = 20,382.20/x
  3. Step 3: Cross multiply
    45,347.18x = 68,043.81 × 20,382.20
  4. Step 4: Simplify right side
    45,347.18x = 1,386,882,544.18
  5. Step 5: Solve for x
    x = 1,386,882,544.18/45,347.18
  6. Step 6: Final answer
    x = 30,583.66

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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.