Home / 66,130.09-91,259.22-35,915.16

Finding the Fourth Proportional to 66,130.09, 91,259.22 and 35,915.16

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Solution

The fourth proportional to 66,130.09, 91,259.22 and 35,915.16 is: 49,562.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,130.09 : 91,259.22 = 35,915.16 : x
  2. Step 2: Convert to fraction form
    66,130.09/91,259.22 = 35,915.16/x
  3. Step 3: Cross multiply
    66,130.09x = 91,259.22 × 35,915.16
  4. Step 4: Simplify right side
    66,130.09x = 3,277,589,964.68
  5. Step 5: Solve for x
    x = 3,277,589,964.68/66,130.09
  6. Step 6: Final answer
    x = 49,562.76

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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.