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Finding the Fourth Proportional to 48,288.63, 72,414.74 and 20,210.63

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Solution

The fourth proportional to 48,288.63, 72,414.74 and 20,210.63 is: 30,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,288.63 : 72,414.74 = 20,210.63 : x
  2. Step 2: Convert to fraction form
    48,288.63/72,414.74 = 20,210.63/x
  3. Step 3: Cross multiply
    48,288.63x = 72,414.74 × 20,210.63
  4. Step 4: Simplify right side
    48,288.63x = 1,463,547,516.69
  5. Step 5: Solve for x
    x = 1,463,547,516.69/48,288.63
  6. Step 6: Final answer
    x = 30,308.33

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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.