Home / 47,769.77-71,654.55-12,709.43

Finding the Fourth Proportional to 47,769.77, 71,654.55 and 12,709.43

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Solution

The fourth proportional to 47,769.77, 71,654.55 and 12,709.43 is: 19,064.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,769.77 : 71,654.55 = 12,709.43 : x
  2. Step 2: Convert to fraction form
    47,769.77/71,654.55 = 12,709.43/x
  3. Step 3: Cross multiply
    47,769.77x = 71,654.55 × 12,709.43
  4. Step 4: Simplify right side
    47,769.77x = 910,688,129.13
  5. Step 5: Solve for x
    x = 910,688,129.13/47,769.77
  6. Step 6: Final answer
    x = 19,064.11

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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.