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Finding the Fourth Proportional to 48,164.20, 72,246.30 and 21,920.20

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Solution

The fourth proportional to 48,164.20, 72,246.30 and 21,920.20 is: 32,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,164.20 : 72,246.30 = 21,920.20 : x
  2. Step 2: Convert to fraction form
    48,164.20/72,246.30 = 21,920.20/x
  3. Step 3: Cross multiply
    48,164.20x = 72,246.30 × 21,920.20
  4. Step 4: Simplify right side
    48,164.20x = 1,583,653,345.26
  5. Step 5: Solve for x
    x = 1,583,653,345.26/48,164.20
  6. Step 6: Final answer
    x = 32,880.30

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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.