Home / 65,130.24-97,708.32-20,755.56

Finding the Fourth Proportional to 65,130.24, 97,708.32 and 20,755.56

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Solution

The fourth proportional to 65,130.24, 97,708.32 and 20,755.56 is: 31,137.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,130.24 : 97,708.32 = 20,755.56 : x
  2. Step 2: Convert to fraction form
    65,130.24/97,708.32 = 20,755.56/x
  3. Step 3: Cross multiply
    65,130.24x = 97,708.32 × 20,755.56
  4. Step 4: Simplify right side
    65,130.24x = 2,027,990,898.26
  5. Step 5: Solve for x
    x = 2,027,990,898.26/65,130.24
  6. Step 6: Final answer
    x = 31,137.47

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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.