Home / 74,615.94-102,966.78-40,623.69

Finding the Fourth Proportional to 74,615.94, 102,966.78 and 40,623.69

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Solution

The fourth proportional to 74,615.94, 102,966.78 and 40,623.69 is: 56,058.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,615.94 : 102,966.78 = 40,623.69 : x
  2. Step 2: Convert to fraction form
    74,615.94/102,966.78 = 40,623.69/x
  3. Step 3: Cross multiply
    74,615.94x = 102,966.78 × 40,623.69
  4. Step 4: Simplify right side
    74,615.94x = 4,182,890,551.02
  5. Step 5: Solve for x
    x = 4,182,890,551.02/74,615.94
  6. Step 6: Final answer
    x = 56,058.94

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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.