Home / 52,658.76-72,669.12-28,785.42

Finding the Fourth Proportional to 52,658.76, 72,669.12 and 28,785.42

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Solution

The fourth proportional to 52,658.76, 72,669.12 and 28,785.42 is: 39,723.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,658.76 : 72,669.12 = 28,785.42 : x
  2. Step 2: Convert to fraction form
    52,658.76/72,669.12 = 28,785.42/x
  3. Step 3: Cross multiply
    52,658.76x = 72,669.12 × 28,785.42
  4. Step 4: Simplify right side
    52,658.76x = 2,091,811,140.23
  5. Step 5: Solve for x
    x = 2,091,811,140.23/52,658.76
  6. Step 6: Final answer
    x = 39,723.90

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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.