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Finding the Fourth Proportional to 64,573.20, 96,862.48 and 20,200.80

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Solution

The fourth proportional to 64,573.20, 96,862.48 and 20,200.80 is: 30,302.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,573.20 : 96,862.48 = 20,200.80 : x
  2. Step 2: Convert to fraction form
    64,573.20/96,862.48 = 20,200.80/x
  3. Step 3: Cross multiply
    64,573.20x = 96,862.48 × 20,200.80
  4. Step 4: Simplify right side
    64,573.20x = 1,956,699,585.98
  5. Step 5: Solve for x
    x = 1,956,699,585.98/64,573.20
  6. Step 6: Final answer
    x = 30,302.04

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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.