Home / 65,744.16-90,733.29-38,895.30

Finding the Fourth Proportional to 65,744.16, 90,733.29 and 38,895.30

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Solution

The fourth proportional to 65,744.16, 90,733.29 and 38,895.30 is: 53,679.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,744.16 : 90,733.29 = 38,895.30 : x
  2. Step 2: Convert to fraction form
    65,744.16/90,733.29 = 38,895.30/x
  3. Step 3: Cross multiply
    65,744.16x = 90,733.29 × 38,895.30
  4. Step 4: Simplify right side
    65,744.16x = 3,529,098,534.54
  5. Step 5: Solve for x
    x = 3,529,098,534.54/65,744.16
  6. Step 6: Final answer
    x = 53,679.27

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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.