Home / 52,499.12-78,748.68-21,336.80

Finding the Fourth Proportional to 52,499.12, 78,748.68 and 21,336.80

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Solution

The fourth proportional to 52,499.12, 78,748.68 and 21,336.80 is: 32,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,499.12 : 78,748.68 = 21,336.80 : x
  2. Step 2: Convert to fraction form
    52,499.12/78,748.68 = 21,336.80/x
  3. Step 3: Cross multiply
    52,499.12x = 78,748.68 × 21,336.80
  4. Step 4: Simplify right side
    52,499.12x = 1,680,244,835.42
  5. Step 5: Solve for x
    x = 1,680,244,835.42/52,499.12
  6. Step 6: Final answer
    x = 32,005.20

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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.