Home / 45,128.68-67,703.58-13,962.28

Finding the Fourth Proportional to 45,128.68, 67,703.58 and 13,962.28

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Solution

The fourth proportional to 45,128.68, 67,703.58 and 13,962.28 is: 20,946.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,128.68 : 67,703.58 = 13,962.28 : x
  2. Step 2: Convert to fraction form
    45,128.68/67,703.58 = 13,962.28/x
  3. Step 3: Cross multiply
    45,128.68x = 67,703.58 × 13,962.28
  4. Step 4: Simplify right side
    45,128.68x = 945,296,340.96
  5. Step 5: Solve for x
    x = 945,296,340.96/45,128.68
  6. Step 6: Final answer
    x = 20,946.69

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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.