Home / 66,731.01-92,122.11-38,431.23

Finding the Fourth Proportional to 66,731.01, 92,122.11 and 38,431.23

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Solution

The fourth proportional to 66,731.01, 92,122.11 and 38,431.23 is: 53,054.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,731.01 : 92,122.11 = 38,431.23 : x
  2. Step 2: Convert to fraction form
    66,731.01/92,122.11 = 38,431.23/x
  3. Step 3: Cross multiply
    66,731.01x = 92,122.11 × 38,431.23
  4. Step 4: Simplify right side
    66,731.01x = 3,540,365,997.50
  5. Step 5: Solve for x
    x = 3,540,365,997.50/66,731.01
  6. Step 6: Final answer
    x = 53,054.28

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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.