Home / 45,223.60-67,816.20-21,857.20

Finding the Fourth Proportional to 45,223.60, 67,816.20 and 21,857.20

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Solution

The fourth proportional to 45,223.60, 67,816.20 and 21,857.20 is: 32,776.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,223.60 : 67,816.20 = 21,857.20 : x
  2. Step 2: Convert to fraction form
    45,223.60/67,816.20 = 21,857.20/x
  3. Step 3: Cross multiply
    45,223.60x = 67,816.20 × 21,857.20
  4. Step 4: Simplify right side
    45,223.60x = 1,482,272,246.64
  5. Step 5: Solve for x
    x = 1,482,272,246.64/45,223.60
  6. Step 6: Final answer
    x = 32,776.52

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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.