Home / 65,309.56-90,128.18-36,635.57

Finding the Fourth Proportional to 65,309.56, 90,128.18 and 36,635.57

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Solution

The fourth proportional to 65,309.56, 90,128.18 and 36,635.57 is: 50,557.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,309.56 : 90,128.18 = 36,635.57 : x
  2. Step 2: Convert to fraction form
    65,309.56/90,128.18 = 36,635.57/x
  3. Step 3: Cross multiply
    65,309.56x = 90,128.18 × 36,635.57
  4. Step 4: Simplify right side
    65,309.56x = 3,301,897,527.19
  5. Step 5: Solve for x
    x = 3,301,897,527.19/65,309.56
  6. Step 6: Final answer
    x = 50,557.65

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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.