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Finding the Fourth Proportional to 45,205.60, 67,808.40 and 12,373.60

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Solution

The fourth proportional to 45,205.60, 67,808.40 and 12,373.60 is: 18,560.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,205.60 : 67,808.40 = 12,373.60 : x
  2. Step 2: Convert to fraction form
    45,205.60/67,808.40 = 12,373.60/x
  3. Step 3: Cross multiply
    45,205.60x = 67,808.40 × 12,373.60
  4. Step 4: Simplify right side
    45,205.60x = 839,034,018.24
  5. Step 5: Solve for x
    x = 839,034,018.24/45,205.60
  6. Step 6: Final answer
    x = 18,560.40

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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.