Home / 66,945.42-92,378.07-38,660.22

Finding the Fourth Proportional to 66,945.42, 92,378.07 and 38,660.22

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Solution

The fourth proportional to 66,945.42, 92,378.07 and 38,660.22 is: 53,347.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,945.42 : 92,378.07 = 38,660.22 : x
  2. Step 2: Convert to fraction form
    66,945.42/92,378.07 = 38,660.22/x
  3. Step 3: Cross multiply
    66,945.42x = 92,378.07 × 38,660.22
  4. Step 4: Simplify right side
    66,945.42x = 3,571,356,509.38
  5. Step 5: Solve for x
    x = 3,571,356,509.38/66,945.42
  6. Step 6: Final answer
    x = 53,347.29

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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.