Home / 76,564.47-105,662.49-42,576.39

Finding the Fourth Proportional to 76,564.47, 105,662.49 and 42,576.39

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Solution

The fourth proportional to 76,564.47, 105,662.49 and 42,576.39 is: 58,757.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,564.47 : 105,662.49 = 42,576.39 : x
  2. Step 2: Convert to fraction form
    76,564.47/105,662.49 = 42,576.39/x
  3. Step 3: Cross multiply
    76,564.47x = 105,662.49 × 42,576.39
  4. Step 4: Simplify right side
    76,564.47x = 4,498,727,382.61
  5. Step 5: Solve for x
    x = 4,498,727,382.61/76,564.47
  6. Step 6: Final answer
    x = 58,757.38

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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.