Home / 72,119.39-99,524.63-43,455.65

Finding the Fourth Proportional to 72,119.39, 99,524.63 and 43,455.65

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Solution

The fourth proportional to 72,119.39, 99,524.63 and 43,455.65 is: 59,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,119.39 : 99,524.63 = 43,455.65 : x
  2. Step 2: Convert to fraction form
    72,119.39/99,524.63 = 43,455.65/x
  3. Step 3: Cross multiply
    72,119.39x = 99,524.63 × 43,455.65
  4. Step 4: Simplify right side
    72,119.39x = 4,324,907,270.38
  5. Step 5: Solve for x
    x = 4,324,907,270.38/72,119.39
  6. Step 6: Final answer
    x = 59,968.72

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Double scale
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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.