Home / 72,315.19-99,796.08-43,636.33

Finding the Fourth Proportional to 72,315.19, 99,796.08 and 43,636.33

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Solution

The fourth proportional to 72,315.19, 99,796.08 and 43,636.33 is: 60,218.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,315.19 : 99,796.08 = 43,636.33 : x
  2. Step 2: Convert to fraction form
    72,315.19/99,796.08 = 43,636.33/x
  3. Step 3: Cross multiply
    72,315.19x = 99,796.08 × 43,636.33
  4. Step 4: Simplify right side
    72,315.19x = 4,354,734,679.59
  5. Step 5: Solve for x
    x = 4,354,734,679.59/72,315.19
  6. Step 6: Final answer
    x = 60,218.81

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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.