Home / 45,488.72-68,223.66-12,200.87

Finding the Fourth Proportional to 45,488.72, 68,223.66 and 12,200.87

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Solution

The fourth proportional to 45,488.72, 68,223.66 and 12,200.87 is: 18,298.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,488.72 : 68,223.66 = 12,200.87 : x
  2. Step 2: Convert to fraction form
    45,488.72/68,223.66 = 12,200.87/x
  3. Step 3: Cross multiply
    45,488.72x = 68,223.66 × 12,200.87
  4. Step 4: Simplify right side
    45,488.72x = 832,387,665.47
  5. Step 5: Solve for x
    x = 832,387,665.47/45,488.72
  6. Step 6: Final answer
    x = 18,298.77

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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.