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Finding the Fourth Proportional to 66,682.56, 92,032.56 and 38,386.56

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Solution

The fourth proportional to 66,682.56, 92,032.56 and 38,386.56 is: 52,979.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,682.56 : 92,032.56 = 38,386.56 : x
  2. Step 2: Convert to fraction form
    66,682.56/92,032.56 = 38,386.56/x
  3. Step 3: Cross multiply
    66,682.56x = 92,032.56 × 38,386.56
  4. Step 4: Simplify right side
    66,682.56x = 3,532,813,386.39
  5. Step 5: Solve for x
    x = 3,532,813,386.39/66,682.56
  6. Step 6: Final answer
    x = 52,979.57

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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.