Home / 66,640.13-91,960.75-36,426.52

Finding the Fourth Proportional to 66,640.13, 91,960.75 and 36,426.52

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Solution

The fourth proportional to 66,640.13, 91,960.75 and 36,426.52 is: 50,267.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,640.13 : 91,960.75 = 36,426.52 : x
  2. Step 2: Convert to fraction form
    66,640.13/91,960.75 = 36,426.52/x
  3. Step 3: Cross multiply
    66,640.13x = 91,960.75 × 36,426.52
  4. Step 4: Simplify right side
    66,640.13x = 3,349,810,099.09
  5. Step 5: Solve for x
    x = 3,349,810,099.09/66,640.13
  6. Step 6: Final answer
    x = 50,267.16

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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.