Home / 45,439.50-68,160.17-12,159.51

Finding the Fourth Proportional to 45,439.50, 68,160.17 and 12,159.51

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Solution

The fourth proportional to 45,439.50, 68,160.17 and 12,159.51 is: 18,239.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,439.50 : 68,160.17 = 12,159.51 : x
  2. Step 2: Convert to fraction form
    45,439.50/68,160.17 = 12,159.51/x
  3. Step 3: Cross multiply
    45,439.50x = 68,160.17 × 12,159.51
  4. Step 4: Simplify right side
    45,439.50x = 828,794,207.92
  5. Step 5: Solve for x
    x = 828,794,207.92/45,439.50
  6. Step 6: Final answer
    x = 18,239.51

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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.