Home / 42,812.31-64,202.49-14,724.41

Finding the Fourth Proportional to 42,812.31, 64,202.49 and 14,724.41

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Solution

The fourth proportional to 42,812.31, 64,202.49 and 14,724.41 is: 22,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,812.31 : 64,202.49 = 14,724.41 : x
  2. Step 2: Convert to fraction form
    42,812.31/64,202.49 = 14,724.41/x
  3. Step 3: Cross multiply
    42,812.31x = 64,202.49 × 14,724.41
  4. Step 4: Simplify right side
    42,812.31x = 945,343,785.78
  5. Step 5: Solve for x
    x = 945,343,785.78/42,812.31
  6. Step 6: Final answer
    x = 22,081.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.