Home / 42,083.20-63,134.68-12,501.28

Finding the Fourth Proportional to 42,083.20, 63,134.68 and 12,501.28

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Solution

The fourth proportional to 42,083.20, 63,134.68 and 12,501.28 is: 18,754.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,083.20 : 63,134.68 = 12,501.28 : x
  2. Step 2: Convert to fraction form
    42,083.20/63,134.68 = 12,501.28/x
  3. Step 3: Cross multiply
    42,083.20x = 63,134.68 × 12,501.28
  4. Step 4: Simplify right side
    42,083.20x = 789,264,312.39
  5. Step 5: Solve for x
    x = 789,264,312.39/42,083.20
  6. Step 6: Final answer
    x = 18,754.85

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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.