Home / 66,645.28-91,970.54-38,350.97

Finding the Fourth Proportional to 66,645.28, 91,970.54 and 38,350.97

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Solution

The fourth proportional to 66,645.28, 91,970.54 and 38,350.97 is: 52,924.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,645.28 : 91,970.54 = 38,350.97 : x
  2. Step 2: Convert to fraction form
    66,645.28/91,970.54 = 38,350.97/x
  3. Step 3: Cross multiply
    66,645.28x = 91,970.54 × 38,350.97
  4. Step 4: Simplify right side
    66,645.28x = 3,527,159,257.52
  5. Step 5: Solve for x
    x = 3,527,159,257.52/66,645.28
  6. Step 6: Final answer
    x = 52,924.37

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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.