Home / 45,946.80-68,917.64-12,211.92

Finding the Fourth Proportional to 45,946.80, 68,917.64 and 12,211.92

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Solution

The fourth proportional to 45,946.80, 68,917.64 and 12,211.92 is: 18,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,946.80 : 68,917.64 = 12,211.92 : x
  2. Step 2: Convert to fraction form
    45,946.80/68,917.64 = 12,211.92/x
  3. Step 3: Cross multiply
    45,946.80x = 68,917.64 × 12,211.92
  4. Step 4: Simplify right side
    45,946.80x = 841,616,645.21
  5. Step 5: Solve for x
    x = 841,616,645.21/45,946.80
  6. Step 6: Final answer
    x = 18,317.20

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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.