Home / 65,985.89-98,969.85-21,607.34

Finding the Fourth Proportional to 65,985.89, 98,969.85 and 21,607.34

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Solution

The fourth proportional to 65,985.89, 98,969.85 and 21,607.34 is: 32,408.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,985.89 : 98,969.85 = 21,607.34 : x
  2. Step 2: Convert to fraction form
    65,985.89/98,969.85 = 21,607.34/x
  3. Step 3: Cross multiply
    65,985.89x = 98,969.85 × 21,607.34
  4. Step 4: Simplify right side
    65,985.89x = 2,138,474,703.85
  5. Step 5: Solve for x
    x = 2,138,474,703.85/65,985.89
  6. Step 6: Final answer
    x = 32,408.06

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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.