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Finding the Fourth Proportional to 52,651.44, 72,660.24 and 28,779.12

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Solution

The fourth proportional to 52,651.44, 72,660.24 and 28,779.12 is: 39,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,651.44 : 72,660.24 = 28,779.12 : x
  2. Step 2: Convert to fraction form
    52,651.44/72,660.24 = 28,779.12/x
  3. Step 3: Cross multiply
    52,651.44x = 72,660.24 × 28,779.12
  4. Step 4: Simplify right side
    52,651.44x = 2,091,097,766.19
  5. Step 5: Solve for x
    x = 2,091,097,766.19/52,651.44
  6. Step 6: Final answer
    x = 39,715.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.