Home / 72,067.53-99,458.10-40,235.76

Finding the Fourth Proportional to 72,067.53, 99,458.10 and 40,235.76

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Solution

The fourth proportional to 72,067.53, 99,458.10 and 40,235.76 is: 55,528.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,067.53 : 99,458.10 = 40,235.76 : x
  2. Step 2: Convert to fraction form
    72,067.53/99,458.10 = 40,235.76/x
  3. Step 3: Cross multiply
    72,067.53x = 99,458.10 × 40,235.76
  4. Step 4: Simplify right side
    72,067.53x = 4,001,772,241.66
  5. Step 5: Solve for x
    x = 4,001,772,241.66/72,067.53
  6. Step 6: Final answer
    x = 55,528.09

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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.