Home / 42,720.17-64,083.33-12,324.04

Finding the Fourth Proportional to 42,720.17, 64,083.33 and 12,324.04

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Solution

The fourth proportional to 42,720.17, 64,083.33 and 12,324.04 is: 18,486.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,720.17 : 64,083.33 = 12,324.04 : x
  2. Step 2: Convert to fraction form
    42,720.17/64,083.33 = 12,324.04/x
  3. Step 3: Cross multiply
    42,720.17x = 64,083.33 × 12,324.04
  4. Step 4: Simplify right side
    42,720.17x = 789,765,362.04
  5. Step 5: Solve for x
    x = 789,765,362.04/42,720.17
  6. Step 6: Final answer
    x = 18,486.95

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1.5x scale

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.