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Finding the Fourth Proportional to 56,456.46, 84,624.96 and 20,894.88

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Solution

The fourth proportional to 56,456.46, 84,624.96 and 20,894.88 is: 31,320.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,456.46 : 84,624.96 = 20,894.88 : x
  2. Step 2: Convert to fraction form
    56,456.46/84,624.96 = 20,894.88/x
  3. Step 3: Cross multiply
    56,456.46x = 84,624.96 × 20,894.88
  4. Step 4: Simplify right side
    56,456.46x = 1,768,228,384.20
  5. Step 5: Solve for x
    x = 1,768,228,384.20/56,456.46
  6. Step 6: Final answer
    x = 31,320.21

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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.