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Finding the Fourth Proportional to 66,840.72, 100,273.74 and 26,862.81

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Solution

The fourth proportional to 66,840.72, 100,273.74 and 26,862.81 is: 40,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,840.72 : 100,273.74 = 26,862.81 : x
  2. Step 2: Convert to fraction form
    66,840.72/100,273.74 = 26,862.81/x
  3. Step 3: Cross multiply
    66,840.72x = 100,273.74 × 26,862.81
  4. Step 4: Simplify right side
    66,840.72x = 2,693,634,425.61
  5. Step 5: Solve for x
    x = 2,693,634,425.61/66,840.72
  6. Step 6: Final answer
    x = 40,299.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.