Home / 72,028.47-99,382.77-43,340.43

Finding the Fourth Proportional to 72,028.47, 99,382.77 and 43,340.43

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Solution

The fourth proportional to 72,028.47, 99,382.77 and 43,340.43 is: 59,799.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,028.47 : 99,382.77 = 43,340.43 : x
  2. Step 2: Convert to fraction form
    72,028.47/99,382.77 = 43,340.43/x
  3. Step 3: Cross multiply
    72,028.47x = 99,382.77 × 43,340.43
  4. Step 4: Simplify right side
    72,028.47x = 4,307,291,986.39
  5. Step 5: Solve for x
    x = 4,307,291,986.39/72,028.47
  6. Step 6: Final answer
    x = 59,799.85

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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.