Home / 74,965.20-103,451.73-40,973.69

Finding the Fourth Proportional to 74,965.20, 103,451.73 and 40,973.69

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Solution

The fourth proportional to 74,965.20, 103,451.73 and 40,973.69 is: 56,543.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,965.20 : 103,451.73 = 40,973.69 : x
  2. Step 2: Convert to fraction form
    74,965.20/103,451.73 = 40,973.69/x
  3. Step 3: Cross multiply
    74,965.20x = 103,451.73 × 40,973.69
  4. Step 4: Simplify right side
    74,965.20x = 4,238,799,114.98
  5. Step 5: Solve for x
    x = 4,238,799,114.98/74,965.20
  6. Step 6: Final answer
    x = 56,543.56

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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.