Home / 52,739.94-72,780.55-28,540.37

Finding the Fourth Proportional to 52,739.94, 72,780.55 and 28,540.37

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Solution

The fourth proportional to 52,739.94, 72,780.55 and 28,540.37 is: 39,385.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,739.94 : 72,780.55 = 28,540.37 : x
  2. Step 2: Convert to fraction form
    52,739.94/72,780.55 = 28,540.37/x
  3. Step 3: Cross multiply
    52,739.94x = 72,780.55 × 28,540.37
  4. Step 4: Simplify right side
    52,739.94x = 2,077,183,461.90
  5. Step 5: Solve for x
    x = 2,077,183,461.90/52,739.94
  6. Step 6: Final answer
    x = 39,385.40

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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.