Home / 66,760.16-92,122.72-39,897.36

Finding the Fourth Proportional to 66,760.16, 92,122.72 and 39,897.36

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Solution

The fourth proportional to 66,760.16, 92,122.72 and 39,897.36 is: 55,054.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,760.16 : 92,122.72 = 39,897.36 : x
  2. Step 2: Convert to fraction form
    66,760.16/92,122.72 = 39,897.36/x
  3. Step 3: Cross multiply
    66,760.16x = 92,122.72 × 39,897.36
  4. Step 4: Simplify right side
    66,760.16x = 3,675,453,324.02
  5. Step 5: Solve for x
    x = 3,675,453,324.02/66,760.16
  6. Step 6: Final answer
    x = 55,054.59

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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.