Home / 56,429.04-84,654.62-20,890.65

Finding the Fourth Proportional to 56,429.04, 84,654.62 and 20,890.65

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Solution

The fourth proportional to 56,429.04, 84,654.62 and 20,890.65 is: 31,340.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,429.04 : 84,654.62 = 20,890.65 : x
  2. Step 2: Convert to fraction form
    56,429.04/84,654.62 = 20,890.65/x
  3. Step 3: Cross multiply
    56,429.04x = 84,654.62 × 20,890.65
  4. Step 4: Simplify right side
    56,429.04x = 1,768,490,037.30
  5. Step 5: Solve for x
    x = 1,768,490,037.30/56,429.04
  6. Step 6: Final answer
    x = 31,340.07

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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.