Home / 66,857.38-92,263.78-38,563.68

Finding the Fourth Proportional to 66,857.38, 92,263.78 and 38,563.68

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Solution

The fourth proportional to 66,857.38, 92,263.78 and 38,563.68 is: 53,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,857.38 : 92,263.78 = 38,563.68 : x
  2. Step 2: Convert to fraction form
    66,857.38/92,263.78 = 38,563.68/x
  3. Step 3: Cross multiply
    66,857.38x = 92,263.78 × 38,563.68
  4. Step 4: Simplify right side
    66,857.38x = 3,558,030,887.51
  5. Step 5: Solve for x
    x = 3,558,030,887.51/66,857.38
  6. Step 6: Final answer
    x = 53,218.22

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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.