Home / 74,781.86-103,200.37-40,791.56

Finding the Fourth Proportional to 74,781.86, 103,200.37 and 40,791.56

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Solution

The fourth proportional to 74,781.86, 103,200.37 and 40,791.56 is: 56,293.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,781.86 : 103,200.37 = 40,791.56 : x
  2. Step 2: Convert to fraction form
    74,781.86/103,200.37 = 40,791.56/x
  3. Step 3: Cross multiply
    74,781.86x = 103,200.37 × 40,791.56
  4. Step 4: Simplify right side
    74,781.86x = 4,209,703,364.92
  5. Step 5: Solve for x
    x = 4,209,703,364.92/74,781.86
  6. Step 6: Final answer
    x = 56,293.11

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1.5x scale

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.