Home / 72,908.46-100,613.97-42,287.58

Finding the Fourth Proportional to 72,908.46, 100,613.97 and 42,287.58

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Solution

The fourth proportional to 72,908.46, 100,613.97 and 42,287.58 is: 58,357.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,908.46 : 100,613.97 = 42,287.58 : x
  2. Step 2: Convert to fraction form
    72,908.46/100,613.97 = 42,287.58/x
  3. Step 3: Cross multiply
    72,908.46x = 100,613.97 × 42,287.58
  4. Step 4: Simplify right side
    72,908.46x = 4,254,721,305.49
  5. Step 5: Solve for x
    x = 4,254,721,305.49/72,908.46
  6. Step 6: Final answer
    x = 58,357.03

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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.