Home / 72,039.74-99,404.96-41,820.26

Finding the Fourth Proportional to 72,039.74, 99,404.96 and 41,820.26

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Solution

The fourth proportional to 72,039.74, 99,404.96 and 41,820.26 is: 57,706.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,039.74 : 99,404.96 = 41,820.26 : x
  2. Step 2: Convert to fraction form
    72,039.74/99,404.96 = 41,820.26/x
  3. Step 3: Cross multiply
    72,039.74x = 99,404.96 × 41,820.26
  4. Step 4: Simplify right side
    72,039.74x = 4,157,140,566.36
  5. Step 5: Solve for x
    x = 4,157,140,566.36/72,039.74
  6. Step 6: Final answer
    x = 57,706.22

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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.