Home / 45,103.40-67,666.80-13,514.12

Finding the Fourth Proportional to 45,103.40, 67,666.80 and 13,514.12

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Solution

The fourth proportional to 45,103.40, 67,666.80 and 13,514.12 is: 20,274.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,103.40 : 67,666.80 = 13,514.12 : x
  2. Step 2: Convert to fraction form
    45,103.40/67,666.80 = 13,514.12/x
  3. Step 3: Cross multiply
    45,103.40x = 67,666.80 × 13,514.12
  4. Step 4: Simplify right side
    45,103.40x = 914,457,255.22
  5. Step 5: Solve for x
    x = 914,457,255.22/45,103.40
  6. Step 6: Final answer
    x = 20,274.69

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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.