Home / 65,135.13-89,886.48-36,840.21

Finding the Fourth Proportional to 65,135.13, 89,886.48 and 36,840.21

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Solution

The fourth proportional to 65,135.13, 89,886.48 and 36,840.21 is: 50,839.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,135.13 : 89,886.48 = 36,840.21 : x
  2. Step 2: Convert to fraction form
    65,135.13/89,886.48 = 36,840.21/x
  3. Step 3: Cross multiply
    65,135.13x = 89,886.48 × 36,840.21
  4. Step 4: Simplify right side
    65,135.13x = 3,311,436,165.73
  5. Step 5: Solve for x
    x = 3,311,436,165.73/65,135.13
  6. Step 6: Final answer
    x = 50,839.48

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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.