Home / 45,207.30-67,798.80-18,906.60

Finding the Fourth Proportional to 45,207.30, 67,798.80 and 18,906.60

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Solution

The fourth proportional to 45,207.30, 67,798.80 and 18,906.60 is: 28,354.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,207.30 : 67,798.80 = 18,906.60 : x
  2. Step 2: Convert to fraction form
    45,207.30/67,798.80 = 18,906.60/x
  3. Step 3: Cross multiply
    45,207.30x = 67,798.80 × 18,906.60
  4. Step 4: Simplify right side
    45,207.30x = 1,281,844,792.08
  5. Step 5: Solve for x
    x = 1,281,844,792.08/45,207.30
  6. Step 6: Final answer
    x = 28,354.82

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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.