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Finding the Fourth Proportional to 56,412.63, 84,628.65 and 18,976.32

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Solution

The fourth proportional to 56,412.63, 84,628.65 and 18,976.32 is: 28,467.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,412.63 : 84,628.65 = 18,976.32 : x
  2. Step 2: Convert to fraction form
    56,412.63/84,628.65 = 18,976.32/x
  3. Step 3: Cross multiply
    56,412.63x = 84,628.65 × 18,976.32
  4. Step 4: Simplify right side
    56,412.63x = 1,605,940,343.57
  5. Step 5: Solve for x
    x = 1,605,940,343.57/56,412.63
  6. Step 6: Final answer
    x = 28,467.74

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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.