Home / 45,412.59-68,118.09-20,434.96

Finding the Fourth Proportional to 45,412.59, 68,118.09 and 20,434.96

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Solution

The fourth proportional to 45,412.59, 68,118.09 and 20,434.96 is: 30,652.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,412.59 : 68,118.09 = 20,434.96 : x
  2. Step 2: Convert to fraction form
    45,412.59/68,118.09 = 20,434.96/x
  3. Step 3: Cross multiply
    45,412.59x = 68,118.09 × 20,434.96
  4. Step 4: Simplify right side
    45,412.59x = 1,391,990,444.43
  5. Step 5: Solve for x
    x = 1,391,990,444.43/45,412.59
  6. Step 6: Final answer
    x = 30,652.08

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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.