Home / 40,360-55,667.56-31,127.44

Finding the Fourth Proportional to 40,360, 55,667.56 and 31,127.44

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Solution

The fourth proportional to 40,360, 55,667.56 and 31,127.44 is: 42,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,360 : 55,667.56 = 31,127.44 : x
  2. Step 2: Convert to fraction form
    40,360/55,667.56 = 31,127.44/x
  3. Step 3: Cross multiply
    40,360x = 55,667.56 × 31,127.44
  4. Step 4: Simplify right side
    40,360x = 1,732,788,633.85
  5. Step 5: Solve for x
    x = 1,732,788,633.85/40,360
  6. Step 6: Final answer
    x = 42,933.32

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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.