Home / 74,796.96-103,220.28-40,805.98

Finding the Fourth Proportional to 74,796.96, 103,220.28 and 40,805.98

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Solution

The fourth proportional to 74,796.96, 103,220.28 and 40,805.98 is: 56,312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,796.96 : 103,220.28 = 40,805.98 : x
  2. Step 2: Convert to fraction form
    74,796.96/103,220.28 = 40,805.98/x
  3. Step 3: Cross multiply
    74,796.96x = 103,220.28 × 40,805.98
  4. Step 4: Simplify right side
    74,796.96x = 4,212,004,681.27
  5. Step 5: Solve for x
    x = 4,212,004,681.27/74,796.96
  6. Step 6: Final answer
    x = 56,312.51

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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.