Home / 45,416.58-68,124.08-20,438.96

Finding the Fourth Proportional to 45,416.58, 68,124.08 and 20,438.96

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Solution

The fourth proportional to 45,416.58, 68,124.08 and 20,438.96 is: 30,658.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,416.58 : 68,124.08 = 20,438.96 : x
  2. Step 2: Convert to fraction form
    45,416.58/68,124.08 = 20,438.96/x
  3. Step 3: Cross multiply
    45,416.58x = 68,124.08 × 20,438.96
  4. Step 4: Simplify right side
    45,416.58x = 1,392,385,346.16
  5. Step 5: Solve for x
    x = 1,392,385,346.16/45,416.58
  6. Step 6: Final answer
    x = 30,658.08

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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.