Home / 65,314.13-90,134.54-36,640.18

Finding the Fourth Proportional to 65,314.13, 90,134.54 and 36,640.18

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Solution

The fourth proportional to 65,314.13, 90,134.54 and 36,640.18 is: 50,564.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,314.13 : 90,134.54 = 36,640.18 : x
  2. Step 2: Convert to fraction form
    65,314.13/90,134.54 = 36,640.18/x
  3. Step 3: Cross multiply
    65,314.13x = 90,134.54 × 36,640.18
  4. Step 4: Simplify right side
    65,314.13x = 3,302,545,836.69
  5. Step 5: Solve for x
    x = 3,302,545,836.69/65,314.13
  6. Step 6: Final answer
    x = 50,564.04

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1.5x scale

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.