Home / 66,717.72-92,055.37-39,854.97

Finding the Fourth Proportional to 66,717.72, 92,055.37 and 39,854.97

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Solution

The fourth proportional to 66,717.72, 92,055.37 and 39,854.97 is: 54,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,717.72 : 92,055.37 = 39,854.97 : x
  2. Step 2: Convert to fraction form
    66,717.72/92,055.37 = 39,854.97/x
  3. Step 3: Cross multiply
    66,717.72x = 92,055.37 × 39,854.97
  4. Step 4: Simplify right side
    66,717.72x = 3,668,864,009.69
  5. Step 5: Solve for x
    x = 3,668,864,009.69/66,717.72
  6. Step 6: Final answer
    x = 54,990.85

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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.