Home / 45,642.96-68,475.36-14,478.18

Finding the Fourth Proportional to 45,642.96, 68,475.36 and 14,478.18

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Solution

The fourth proportional to 45,642.96, 68,475.36 and 14,478.18 is: 21,720.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,642.96 : 68,475.36 = 14,478.18 : x
  2. Step 2: Convert to fraction form
    45,642.96/68,475.36 = 14,478.18/x
  3. Step 3: Cross multiply
    45,642.96x = 68,475.36 × 14,478.18
  4. Step 4: Simplify right side
    45,642.96x = 991,398,587.64
  5. Step 5: Solve for x
    x = 991,398,587.64/45,642.96
  6. Step 6: Final answer
    x = 21,720.73

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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.