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Finding the Fourth Proportional to 73,090.96, 100,865.96 and 40,386.32

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Solution

The fourth proportional to 73,090.96, 100,865.96 and 40,386.32 is: 55,733.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,090.96 : 100,865.96 = 40,386.32 : x
  2. Step 2: Convert to fraction form
    73,090.96/100,865.96 = 40,386.32/x
  3. Step 3: Cross multiply
    73,090.96x = 100,865.96 × 40,386.32
  4. Step 4: Simplify right side
    73,090.96x = 4,073,604,937.67
  5. Step 5: Solve for x
    x = 4,073,604,937.67/73,090.96
  6. Step 6: Final answer
    x = 55,733.36

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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.