Home / 72,643.24-100,248.63-43,962.56

Finding the Fourth Proportional to 72,643.24, 100,248.63 and 43,962.56

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Solution

The fourth proportional to 72,643.24, 100,248.63 and 43,962.56 is: 60,668.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,643.24 : 100,248.63 = 43,962.56 : x
  2. Step 2: Convert to fraction form
    72,643.24/100,248.63 = 43,962.56/x
  3. Step 3: Cross multiply
    72,643.24x = 100,248.63 × 43,962.56
  4. Step 4: Simplify right side
    72,643.24x = 4,407,186,121.12
  5. Step 5: Solve for x
    x = 4,407,186,121.12/72,643.24
  6. Step 6: Final answer
    x = 60,668.91

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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.