Home / 64,738.85-97,113.60-17,991.72

Finding the Fourth Proportional to 64,738.85, 97,113.60 and 17,991.72

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Solution

The fourth proportional to 64,738.85, 97,113.60 and 17,991.72 is: 26,989.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,738.85 : 97,113.60 = 17,991.72 : x
  2. Step 2: Convert to fraction form
    64,738.85/97,113.60 = 17,991.72/x
  3. Step 3: Cross multiply
    64,738.85x = 97,113.60 × 17,991.72
  4. Step 4: Simplify right side
    64,738.85x = 1,747,240,699.39
  5. Step 5: Solve for x
    x = 1,747,240,699.39/64,738.85
  6. Step 6: Final answer
    x = 26,989.06

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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.