Home / 52,815.12-72,886.87-30,157.80

Finding the Fourth Proportional to 52,815.12, 72,886.87 and 30,157.80

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Solution

The fourth proportional to 52,815.12, 72,886.87 and 30,157.80 is: 41,618.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,815.12 : 72,886.87 = 30,157.80 : x
  2. Step 2: Convert to fraction form
    52,815.12/72,886.87 = 30,157.80/x
  3. Step 3: Cross multiply
    52,815.12x = 72,886.87 × 30,157.80
  4. Step 4: Simplify right side
    52,815.12x = 2,198,107,648.09
  5. Step 5: Solve for x
    x = 2,198,107,648.09/52,815.12
  6. Step 6: Final answer
    x = 41,618.91

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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.