Home / 52,135.12-72,015.51-39,961.63

Finding the Fourth Proportional to 52,135.12, 72,015.51 and 39,961.63

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Solution

The fourth proportional to 52,135.12, 72,015.51 and 39,961.63 is: 55,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,135.12 : 72,015.51 = 39,961.63 : x
  2. Step 2: Convert to fraction form
    52,135.12/72,015.51 = 39,961.63/x
  3. Step 3: Cross multiply
    52,135.12x = 72,015.51 × 39,961.63
  4. Step 4: Simplify right side
    52,135.12x = 2,877,857,164.88
  5. Step 5: Solve for x
    x = 2,877,857,164.88/52,135.12
  6. Step 6: Final answer
    x = 55,199.97

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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.