Home / 66,142.47-91,277.58-35,928.36

Finding the Fourth Proportional to 66,142.47, 91,277.58 and 35,928.36

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Solution

The fourth proportional to 66,142.47, 91,277.58 and 35,928.36 is: 49,581.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,142.47 : 91,277.58 = 35,928.36 : x
  2. Step 2: Convert to fraction form
    66,142.47/91,277.58 = 35,928.36/x
  3. Step 3: Cross multiply
    66,142.47x = 91,277.58 × 35,928.36
  4. Step 4: Simplify right side
    66,142.47x = 3,279,453,754.17
  5. Step 5: Solve for x
    x = 3,279,453,754.17/66,142.47
  6. Step 6: Final answer
    x = 49,581.66

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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.