Home / 145,003.47-217,504.79-39,822.54

Finding the Fourth Proportional to 145,003.47, 217,504.79 and 39,822.54

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Solution

The fourth proportional to 145,003.47, 217,504.79 and 39,822.54 is: 59,733.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,003.47 : 217,504.79 = 39,822.54 : x
  2. Step 2: Convert to fraction form
    145,003.47/217,504.79 = 39,822.54/x
  3. Step 3: Cross multiply
    145,003.47x = 217,504.79 × 39,822.54
  4. Step 4: Simplify right side
    145,003.47x = 8,661,593,199.97
  5. Step 5: Solve for x
    x = 8,661,593,199.97/145,003.47
  6. Step 6: Final answer
    x = 59,733.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.