Home / 58,212.28-87,320.58-18,769.96

Finding the Fourth Proportional to 58,212.28, 87,320.58 and 18,769.96

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Solution

The fourth proportional to 58,212.28, 87,320.58 and 18,769.96 is: 28,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,212.28 : 87,320.58 = 18,769.96 : x
  2. Step 2: Convert to fraction form
    58,212.28/87,320.58 = 18,769.96/x
  3. Step 3: Cross multiply
    58,212.28x = 87,320.58 × 18,769.96
  4. Step 4: Simplify right side
    58,212.28x = 1,639,003,793.78
  5. Step 5: Solve for x
    x = 1,639,003,793.78/58,212.28
  6. Step 6: Final answer
    x = 28,155.64

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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.