Home / 72,028.73-99,405.28-40,202.41

Finding the Fourth Proportional to 72,028.73, 99,405.28 and 40,202.41

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Solution

The fourth proportional to 72,028.73, 99,405.28 and 40,202.41 is: 55,482.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,028.73 : 99,405.28 = 40,202.41 : x
  2. Step 2: Convert to fraction form
    72,028.73/99,405.28 = 40,202.41/x
  3. Step 3: Cross multiply
    72,028.73x = 99,405.28 × 40,202.41
  4. Step 4: Simplify right side
    72,028.73x = 3,996,331,621.71
  5. Step 5: Solve for x
    x = 3,996,331,621.71/72,028.73
  6. Step 6: Final answer
    x = 55,482.47

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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.