Home / 72,067.44-99,448.88-40,238.35

Finding the Fourth Proportional to 72,067.44, 99,448.88 and 40,238.35

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Solution

The fourth proportional to 72,067.44, 99,448.88 and 40,238.35 is: 55,526.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,067.44 : 99,448.88 = 40,238.35 : x
  2. Step 2: Convert to fraction form
    72,067.44/99,448.88 = 40,238.35/x
  3. Step 3: Cross multiply
    72,067.44x = 99,448.88 × 40,238.35
  4. Step 4: Simplify right side
    72,067.44x = 4,001,658,941.14
  5. Step 5: Solve for x
    x = 4,001,658,941.14/72,067.44
  6. Step 6: Final answer
    x = 55,526.59

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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.