Home / 66,825.20-92,218.75-39,967.71

Finding the Fourth Proportional to 66,825.20, 92,218.75 and 39,967.71

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Solution

The fourth proportional to 66,825.20, 92,218.75 and 39,967.71 is: 55,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,825.20 : 92,218.75 = 39,967.71 : x
  2. Step 2: Convert to fraction form
    66,825.20/92,218.75 = 39,967.71/x
  3. Step 3: Cross multiply
    66,825.20x = 92,218.75 × 39,967.71
  4. Step 4: Simplify right side
    66,825.20x = 3,685,772,156.64
  5. Step 5: Solve for x
    x = 3,685,772,156.64/66,825.20
  6. Step 6: Final answer
    x = 55,155.42

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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.