Home / 52,029.12-71,800.20-28,155.72

Finding the Fourth Proportional to 52,029.12, 71,800.20 and 28,155.72

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Solution

The fourth proportional to 52,029.12, 71,800.20 and 28,155.72 is: 38,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,029.12 : 71,800.20 = 28,155.72 : x
  2. Step 2: Convert to fraction form
    52,029.12/71,800.20 = 28,155.72/x
  3. Step 3: Cross multiply
    52,029.12x = 71,800.20 × 28,155.72
  4. Step 4: Simplify right side
    52,029.12x = 2,021,586,327.14
  5. Step 5: Solve for x
    x = 2,021,586,327.14/52,029.12
  6. Step 6: Final answer
    x = 38,854.90

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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.