Home / 45,155.36-67,732.28-12,323.36

Finding the Fourth Proportional to 45,155.36, 67,732.28 and 12,323.36

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Solution

The fourth proportional to 45,155.36, 67,732.28 and 12,323.36 is: 18,484.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,155.36 : 67,732.28 = 12,323.36 : x
  2. Step 2: Convert to fraction form
    45,155.36/67,732.28 = 12,323.36/x
  3. Step 3: Cross multiply
    45,155.36x = 67,732.28 × 12,323.36
  4. Step 4: Simplify right side
    45,155.36x = 834,689,270.06
  5. Step 5: Solve for x
    x = 834,689,270.06/45,155.36
  6. Step 6: Final answer
    x = 18,484.83

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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.